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1.
调查了保利(南昌)高尔夫球场草坪害虫种类和密度,其中以蝼蛄、蛴螬等地下害虫和水稻切叶野螟、斜纹夜蛾、淡剑袭夜蛾等地面害虫对草坪造成严重危害。果岭草坪上的主要虫害是氮甲和蛴螬;发球台草坪的主要虫害有蝼蛄、蛴螬以及地上害虫;球道和高草区草坪上的主要虫害有蛴螬、蝼蛄、水稻切叶野螟、淡剑袭夜蛾、斜纹夜蛾等。掌握各功能区主要害虫的数量消长情况,可对高尔夫球场各功能区虫害提出更有针对性的防治方法,从而减少害虫对高尔夫球场的危害。  相似文献   

2.
An updated list of all 27 species of aphelinids (Hymenoptera: Aphelinidae) in nine genera that have been identified or reported from South Korea, along with a dichotomous taxonomic key to separate them, is provided. Ten of the species are included in the EPPO ‘Positive list of biological control agents widely used in the EPPO region’ (which corresponds to Appendix 1 – Commercially used biological control agents – and to Appendix 2 – Successfully introduced classical biological control agents – of EPPO Standard PM 6/3, 2016 version). Five of these species are successfully used in classical biological control. Other species could be used in the EPPO region, or elsewhere in the world, in the future.  相似文献   

3.
Mole crickets (Scapteriscus spp.) are severe subterranean pests of turfgrasses, commonly targeted with neurotoxic insecticides. Ideally insecticides used against mole crickets should induce quick knockdown or mortality to minimize damage caused by their tunneling. However, neurophysiological effects of insecticides on mole crickets are mostly unknown. The aims of this study were to investigate neurophysiological and toxic effects of several insecticides on tawny mole cricket (Scapteriscus vicinus Scudder) adults and nymphs, and potential synergy between pyrethroid and neonicotinoid insecticides. Bifenthrin, fipronil, and the combination of bifenthrin + imidacloprid provided the fastest median mortality when injected. The combination of bifenthrin + imidacloprid elicited faster toxicity than either active ingredient alone. Imidacloprid, bifenthrin, and bifenthrin + imidacloprid caused immediate knockdown, whereas fipronil immobilized mole crickets within 1-2 h. Acephate, bifenthrin, fipronil, imidacloprid, and bifenthrin + imidacloprid caused significant neuroexcitation. Bifenthrin + imidacloprid resulted in greater increases of spontaneous neural activity than the additive effects of imidacloprid and bifenthrin alone. Excitatory compounds acting at sodium and chloride channels (bifenthrin and fipronil) were the most toxic against S. vicinus. Combining a sodium channel toxin (bifenthrin) and a synaptic toxin (imidacloprid) led to greater than additive neurophysiological and toxic effects, which to our knowledge provides the first documented evidence of synergistic neurological “potentiation”.  相似文献   

4.
F. BIN  R. BRUNI 《EPPO Bulletin》1997,27(1):53-59
Introduction of pests into Italy appears to be increasing. Between 1974 and 1994, 82 exotic insect species have been recorded as new to Italy, representing approximately four introductions per year, compared with one species per year up to the 1960s and two species per year in the 1980s. To combat these, and native, pests, 28 entomophagous species have been used in the last 20 years in classical biological control programmes. At the same time, 24 other species of entomophages have played a role in pest control without human intervention (i.e. fortuitous associations). There are examples of native and introduced entomophages acting fortuitously or in planned programmes on native or introduced pests. So far, none of the introduced entomophages appear to have caused any negative effects on the Italian ecosystem. However, because of increasing concerns about the possibility of such effects, there is a need to develop clear protocols covering entry and release of biological control agents.  相似文献   

5.
Unlike biocontrol of insect pests, biocontrol of invasive weeds is not largely studied in Eurasia, but remains an ecologically sound approach to invasive species management. The case study of silverleaf nightshade ( Solanum elaeagnifolium ) is a good example of a New World weed which has been introduced and is spreading over the Mediterranean Basin. S. elaeagnifolium economically impacts agricultural areas by competing with cereal crops, damaging pastures, and infesting meadows and roadsides. This paper deals with classical biological control of S. elaeagnifolium in the Mediterranean basin with natural enemies from the region of origin of the target plant, using studies conducted on other continents. Natural enemies are listed and their capability to attack and control the target plant is discussed. Special attention is devoted to Leptinotarsa texana and L. deflecta , chrysomelid beetles already released with success against S. elaeagnifolium in South Africa, one of the five Mediterranean-type regions of the world.  相似文献   

6.
Bark beetles, especially Dendroctonus species, are considered to be serious pests of the coniferous forests in North America. Bark beetle forest pests undergo population eruptions, causing region wide economic losses. In order to save forests, finding new and innovative environmentally friendly approaches in wood-boring insect pest management is more important than ever. Several biological control methods have been attempted over time to limit the damage and spreading of bark beetle epidemics. The use of entomopathogenic microorganisms against bark beetle populations is an attractive alternative tool for many biological control programmes in forestry. However, the effectiveness of these biological control agents is strongly affected by environmental factors, as well as by the susceptibility of the insect host. Bark beetle susceptibility to entomopathogens varies greatly between species. According to recent literature, bark beetles are engaged in symbiotic relationships with fungi and bacteria. These types of relationship are very complex and apparently involved in bark beetle defensive mechanisms against pathogens. The latest scientific discoveries in multipartite symbiosis have unravelled unexpected opportunities in bark beetle pest management, which are discussed in this article.  相似文献   

7.
Summary Carthamus lanatus is a widespread and troublesome weed of crops and pastures in Australia. It is viewed as a target for both inundative and classical biological control. As fungal biological control agents are often specific in terms of their host range, the genetic variation within the host may be important in their successful deployment. The detection of genetic variation in populations of C. lanatus from New South Wales was studied using polymerase chain reaction (PCR)-based, intersimple sequence repeats (ISSR) analysis. DNA extracted from plant samples from 11 locations in New South Wales was compared with one sample from Western Australia and one accession of the closely related crop plant, safflower. The analysis indicated that there were two distinct groups of C. lanatus that correlated with location (northern and southern regions). Within-group genetic diversity, as determined by the Shannon genetic diversity index, was low at 0.33 in the southern group and 0.22 in the northern group. The presence of these groups may have implications for the biological control of C. lanatus using exotic fungi. In any screening of candidate agents, representatives of these populations should be included.  相似文献   

8.
Coffee pests have been estimated to cause losses of about 13% of the world yield but are most serious in Africa, particularly where Arabica coffee is grown. Coffee pests are normally indigenous and except for the berry borer beetle (Hypothenemus hampei Ferrari) there has been little movement between the main production areas. There is a great variety of pests but because the crop is perennial, evergreen and only grown in areas without climatic extremes, pest populations only rarely become intolerable, being held in check for most of the time by parasites, predators and diseases. Routine spraying of insecticides in coffee plantations is undesirable for these kill parasites and predators and often result in pest outbreaks. An effective but simple integrated control system has been evolved over many decades in East Africa, using a combination of cultural, biological and chemical control. Pest numbers are monitored continuously by growers and insecticides are used as selectively as possible. The system is ideally suited to areas where labour is cheap but technology is expensive.  相似文献   

9.
Nassella trichotoma (serrated tussock) is a highly invasive perennial C3 weed from South America. It grows in most soil conditions, can resist fire and frost, and is unpalatable to grazing animals. Each plant can produce up to 140,000 seeds annually, and together, these characteristics make it a damaging landscape weed. It has diminished the agricultural carrying capacity of pastures in south-eastern Australia, New Zealand and South Africa, and emerging populations have now been identified in Europe and the United States, and bioclimatic models suggest its distribution could significantly expand within these regions in the near future. Research into control methods for this weed has been explored, and these include herbicides applied alone and in combination, the establishment of plant competition, the introduction of seed mitigation fencing, grazing management and exclusion zones, specific biological management and alteration of soil composition. Currently, the most effective and widely used control method is the residual herbicide flupropanate (2,2,3,3-tetrafluoropropanoic acid). This review will investigate the ecology, distribution, current control techniques and past research on this species, and make recommendations for future research and management.  相似文献   

10.
Although the enemy release hypothesis forms the theoretical basis for classical (=importation) biological control of invasive pests, its core assumptions are not always examined. This could contribute to unrealistic expectations for some biological control programs. In this paper we examine the assumptions that: (i) enemy release has contributed to the invasive nature of four exotic pentatomids in North America; and (ii) classical biological control with egg parasitoids has been or will be successful in reducing populations of these pests below economically significant levels. First, we review the history of biological control programs against invasive stink bugs to highlight the variable and controversial levels of success of introducing egg parasitoids against stink bugs. Then, we use simple stage‐structured matrix models to demonstrate that it may be easy to overestimate the contribution of egg parasitism alone to a reduction in stink bug population growth. Finally, we discuss what realistic expectations might be for success of biological control against invasive stink bugs using egg parasitoids in the context of integrated pest management programs. © 2020 Her Majesty the Queen in Right of Canada Pest Management Science © 2020 Society of Chemical Industry  相似文献   

11.
我国地下害虫防治现状   总被引:1,自引:0,他引:1  
针对我国地下害虫发生为害及其造成的经济损失不断加重的现状,本文综述了当前我国地下害虫的主要种类、分布、生活习性、为害特点,并从物理防治、化学防治、生物防治、农业防治等四个方面阐述了目前我国地下害虫的防治现状,以期为农业生产中地下害虫的防治提供一些参考。  相似文献   

12.
Modern commercial poultry production under large companies is expanding worldwide with similar methods and housing, and the accompanying arthropod and rodent pest problems. The pests increase the cost of production and are factors in the spread of avian diseases. The biology, behavior and control of ectoparasites and premise pests are described in relation to the different housing and production practices for broiler breeders, turkey breeders, growout (broilers and turkeys), caged-layers, and pullets. Ectoparasites include Ornithonyssus fowl mites, Dermanyssus chicken mites, lice, bedbugs, fleas, and argasid fowl ticks. Premise pests include Alphitobius darkling beetles, Dermestes hide beetles, the house fly and several related filth fly species, calliphorid blow flies, moths, cockroaches, and rodents. Populations of these pests are largely determined by the housing, waste, and flock management practices. An integrated pest management (IPM) approach, tailored to the different production systems, is required for satisfactory poultry pest control. Biosecurity, preventing the introduction of pests and diseases into a facility, is critical. Poultry IPM, based on pest identification, pest population monitoring, and methods of cultural, biological, and chemical control, is elucidated. The structure of the sophisticated, highly integrated poultry industry provides a situation conducive to refinement and wider implementation of IPM.  相似文献   

13.
The biological control of pest tephritid flies using parasitoids has been successful in relatively few subtropical and tropical regions. The best documented successes were in Hawaii and Florida, USA, Fiji and southern Europe. There were relatively limited successes in Australia, Costa Rica and Mexico. With the accidental establishment of new pest tephritids, such as Bactrocera latifrons (Hendel) in Hawaii or Bactrocera papayae Drew and Hancock in Australia, foreign exploration for new parasitoids is essential. A renewal of interest in classical biological control has recently occurred, although not at the same level as in the 1940s and 1950s. New parasitoid species are currently being obtained for several tephritids, such as Ceratitis capitata (Weidemann), B. latifrons and Anastrepha suspensa (Loew). The advances in mass rearing and quality control technology for parasitoids has enabled researchers to perform large-scale field testing of these parasitoids to determine the potential of augmentative releases. Numerous studies on the augmentative release of parasitoids have been done. Historically, the larval—pupal parasitoid Diachasmimorpha longicaudata (Ashmead) has been the most frequently studied parasitoid, due to the ease of rearing this species. However, recent successes in rearing other species with different biologies, e.g. the egg—pupal parasitoid Biosteres arisanus (Sonan), the gregarious eulophid, Tetrastichus giffardianus (Silvestri) and the pupal parasitoid, Coptera sp., will enable researchers to broaden the repertoire of parasitoid species for the future. Both successes and failures in augmentative releases have occurred. Without knowledge of the behavioural ecology of parasitoids, the reasons for success or failure can only be surmised. Recent research on the dispersal and host habitat finding of tephritid parasitoids will provide insights into improving augmentation and conservation strategies. The integrated pest management (IPM) of tephritid flies in the tropics has been less well-developed than research and programmes for tephritids in temperate zones. Significant emphasis is now being placed on the development of quarantine treatment methods that are environmentally sound; thus IPM will take a larger role. Several existing pest management strategies are reviewed which show the potential for compatibility with the activities of tephritid parasitoids. These include trap cropping, insecticides with selective toxicity to the target pests, mass trapping with parapheromones, the sterile insect technique and field sanitation.  相似文献   

14.
The experience of introducing more than 120 species of exotic biological control agents for use against more than 40 species of pests during 70 years in the countries of the former USSR is analysed. The examples of biological protection of citrus orchards and some other programmes using biological control agents are described in more detail. The precautionary measures elaborated for these programmes consist of: (1) the prohibition of use by insufficiently qualified persons or non-State organizations; (2) phytosanitary procedures preventing the spread of quarantine pests; (3) elimination from the biological control material of any hyperparasites, diseases or other accidentally introduced organisms under adequate quarantine conditions; (4) investigations at the place of release of the biological control agent into the environment.  相似文献   

15.
Classical biological control remains the only tool available for permanent ecological and economic management of invasive alien species that flourish through absence of their co‐evolved natural enemies. As such, this approach is recognized as a key tool for alien species management by the Convention on Biological Diversity (CBD), the European and Mediterranean Plant Protection Organization (EPPO) and the European Strategy on Invasive Alien Species (ESIAS). Successful classical biological control programmes abound around the world, despite disproportionate attention being given to occasional and predictable non‐target impacts. Despite more than 130 case histories in Europe against insect pests, no exotic classical biological control agent has been released in the EU against an alien invasive weed. This dearth has occurred in the face of increasing numbers of exotic invasive plants being imported and taking over National Parks, forests and amenity areas in this region, as well as a global increase in the use of classical biological control around the world. This paper reviews potential European weed targets for classical biological control from ecological and socioeconomic perspectives using the criteria of historical biological control success, taxonomic isolation from European native flora, likely availability of biological control agents, invasiveness outside Europe and value to primary industry and horticulture (potential for conflicts of interest). We also review why classical biological control of European exotic plants remains untested, considering problems of funding and public perception. Finally, we consider the regulatory framework that surrounds such biological control activities within constituent countries of the EU to suggest how this approach may be adopted in the future for managing invasive exotic weeds in Europe.  相似文献   

16.
应用斯氏线虫防治8种鳞翅目、鞘翅目昆虫的研究   总被引:5,自引:0,他引:5  
1991—1993年在哈尔滨、牡丹江和阿城等地进行了应用斯氏线虫防治8种害虫的研究,其中鳞翅目5种:粘虫、甘蓝夜蛾、银纹夜蛾、向日葵螟、小菜蛾;鞘翅目3种:白星金龟子、马铃薯瓢虫和细胸金针虫。用3个种5个品系线虫测定的结果表明,除金针虫外,斯氏线虫对其它7种害虫均能侵染。室内试验表明,Beijing品系对粘虫、甘蓝夜蛾、向日葵螟和小菜蛾的致病力最强,害虫死亡率范围为79.3%—100.0%。田间试验表明,Beijing品系线虫对马铃薯二十八星瓢虫具有较好的防治效果。而NC32和Beijing品系在室内和田间对细胸金针虫均未表现出致病力。这些结果表明,斯氏线虫在本省具有广阔的应用前景。  相似文献   

17.
BACKGROUND: Among the termite infestations in the United States, the Formosan subterranean termite, Coptotermes formosanus Shiraki (Isoptera: Rhinotermitidae), is considered to be the most devastating termite pest. This pest most likely invaded North America as a result of the disembarkation of wooden military cargo at the port of New Orleans that arrived from Asia during and after World War II. It has now spread over other states, including Texas, Florida, South Carolina and California. Devastation caused by C. formosanus in North America has been estimated to cost $ US 1 billion a year. Over the past decades, organochlorines and organophosphates, the two prominent classes of termite control agents, have been banned owing to environmental and human health concerns. At the present time, phenylpyrazoles, pyrethroids, chloronicotinyls and pyrroles are being used as termite control agents. Mammalian toxicity and seeping of these compounds into groundwater are some of the drawbacks associated with these treatments. The instruction for the application of these termiticides indicate ground water advisory. Hence, with the increasing spread of termite infestation there is an increased need to discover effective, environmentally friendly and safe termite control agents with minimal mammalian toxicity. RESULTS: Chromene analogs derived from a natural‐product‐based chromene amide isolated from Amyris texana were tested in a collaborative discovery program for effective, environmentally friendly termite control agents. Several chromene derivatives were synthesized and characterized as a novel class of potential termiticides, followed by bioassays. These compounds exhibited significantly higher mortalities compared with untreated controls in laboratory bioassays. CONCLUSION: Chromene derivatives have been shown to be a potential novel class of termiticides against Formosan subterranean termites. Copyright © 2011 Society of Chemical Industry  相似文献   

18.
Pear psylla, Cacopsylla pyricola (Foerster) (Homoptera: Psyllidae), is one of the key insect pests in North American pear production. In some growing areas, more than 50% of dollars spent to control arthropod pests in commercial pear are directed specifically at controlling this species. Control measures require accurate and timely information about dispersal, onset of egg-laying in spring, densities in the orchard, and age composition of the population. To meet these ends, a number of sampling methods have been developed to monitor pear psylla, the most common being (for pest management purposes) visual inspection of spurs and foliage for nymphs and eggs, and use of beat trays to monitor adults. Action thresholds have been developed for counts obtained with either method. However, threshold estimates are fairly narrowly defined, referring to a somewhat limited group of pear cultivars, type of injury to be prevented, and pest management program being used. Further refinement has been difficult because of an incomplete understanding of psylla's spatial distribution, seasonal changes in spatial distribution, and unknown or seasonally changing action thresholds. Beat trays and visual inspection of foliage have also been used to monitor pear psylla in various types of research projects, including studies of dispersal and biological control. Other sampling tools used in research include sticky traps, suction traps, and water pan traps. Density estimates obtained by these different sampling methods tend be positively correlated, albeit with high levels of unexplained variation. For counts obtained by sticky traps, much of the unexplained variation can be attributed to flight activity of the insect, which is known to depend (at a minimum) on sex, morphotype, reproductive status, time of year, time of day, leaf fall, and weather. Thus, if sticky traps are to be used in a pest management program for pear psylla, it must be recognized that counts on traps will include both density and (potentially large) behavioral components. I conclude this review with suggestions about the type of research that would improve monitoring techniques for this pest and assist eventually in developing a more effective control program.  相似文献   

19.
Six mealybug species have been reported as citrus pests in the Mediterranean Basin: the citrus mealybugPlanococcus citri (Risso), the citriculus mealybugPseudococcus cryptus Hempel, the longtailed mealybugPseudococcus longispinus (Targioni-Tozzetti), the citrophilus mealybugPseudococcus calceolariae (Maskell), the obscure mealybugPseudococcus viburni (Signoret) and the spherical mealybugNipaecoccus viridis (Newstead). Some of these species,e.g. N. viridis, have recently been introduced into the region and are still spreading. Mealybugs are usually occasional or minor pests of citrus, but some species can reach key pest status. Mealybug management strategies in citrus have been based mostly on classical biological control and, to a lesser extent, on augmentative releases. However, chemical control is widely used, mainly because of the poor adaptation of the principal natural enemies to the climatic conditions of the Mediterranean. The application of pheromones is still restricted to monitoring the citrus mealybug, whose sex pheromone is commercially available. Mass trapping and mating disruption should be considered for possible use in IPM programs as an alternative method to supplementary chemical treatments. Enhancement of biological control through management of ant populations is another promising tactic for control of mealybugs. Strategies for managing mealybug pests of citrus, and possible levels of integration of different tactics according to the pest status, are discussed. http://www.phytoparasitica.org posting Oct. 3, 2004.  相似文献   

20.
The Agricultural Research Service of the United States Department of Agriculture has maintained a continuous European effort in classical biological control of exotic pests in the USA. The European Parasite Laboratory was established in France in 1919, while the European Weed Laboratory began operations in Rome in 1958. The two laboratories were merged in Montpellier in 1991 as the European Biological Control Laboratory (EBCL), becoming the primary overseas biocontrol laboratory of the USDA. The management of weeds, insect pests, and pathogens is an important feature of agricultural research programmes worldwide. These invasive species can lead to vast financial losses for countries engaged in agriculture. The overall goal of research at EBCL is to develop biological control technologies to be used to suppress invading weeds and insect pests. This is done through expeditions to find natural enemies (insects, mites and pathogens), or phytophagous, parasitoid or predator species. These are characterized in careful experimentation in quarantine facilities and eventually developed as biological control agents. Current weed projects include studies on the Centaurea spp., Arundo donax , Vincetoxicum spp., Isatis tinctoria , Taeniatherum sp. and Dipsacus sp. Insect projects research Lygus bugs, the olive fruit fly, the vine mealybug, and the Asian long-horned beetle. The EBCL team is international and interdisciplinary. Entomology, plant and insect pathology, molecular biology and ecology are the main approaches of our biocontrol research. The team cooperates with universities and agencies worldwide.  相似文献   

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