共查询到20条相似文献，搜索用时 93 毫秒
1.
2.
广东鹤山南亚热带丘陵人工林昆虫资源的研究（Ⅰ） 总被引：1，自引：0，他引：1
本文根据2001年和2002年的调查结果，记述了广东鹤山南亚热带丘陵退化生态系统恢复中四种人工林的昆虫种类，共计14目161科488种，本文记载11目84科216种。 相似文献
3.
广东鹤山南亚热带丘陵人工林昆虫资源的研究（Ⅱ） 总被引：1，自引：0，他引：1
本文根据2001和2002年的调查结果，记述了广东鹤山南亚热带丘陵退化生态系统恢复中四种人工林的昆虫种类，共计14目161科488种，本文记载3目77科272种。 相似文献
4.
棉虫综合治理对天敌昆虫群落的影响 总被引：8，自引：0，他引：8
棉花是河南省主要经济作物,在多年的研究基础上,我们于1988年组建了以保护与利用天敌力中心的棉田害虫综合治理模式,在主要产棉区太康县示范推广。本文报道了朱口乡棉虫综合治理示范区天敌昆虫群落结构的调查结果。 相似文献
5.
本文主要对安远三百山自然保护区膜翅日昆虫种类进行了调查，调查结果有20个科，36种，占我省已知膜翅日昆虫43个科的46．5％，为合理高效地开发利用保护昆虫资源，提供了可靠依据。 相似文献
6.
黑龙江省昆虫病原线虫资源和越冬情况调查初报* 总被引：1，自引：0，他引：1
为明确我国黑龙江省昆虫病原线虫资源及其越冬情况,在黑龙江省9个县市林下和农田中采集土样分离昆虫病原线虫,并选用从哈尔滨分离的线虫和从美国新泽西引进的昆虫病原线虫进行越冬条件的调查,调查线虫在土壤中越冬深度及土壤温湿度。据不完全统计目前从黑龙江省29份土壤样品中分离得到2个昆虫病原线虫品系,分离频率是6.9%,经鉴定为Heterorhabditis bacteriophora HBN和H. bacteriophora ZT。户外调查结果显示侵染期病原线虫在土壤中越冬深度为5~15 cm,土壤温度为-5~-13 ℃,土壤湿度为(12.9±2.9)%~(17.3±1.2)%。而来自新泽西的对照组线虫在哈尔滨的冬天不能存活。本文调查结果表明在中国最北部黑龙江省有嗜菌异小杆线虫分布,增加了我国昆虫病原线虫资源,扩大了调查地域。 相似文献
7.
昆虫病原线虫Steinernema carpocapsae Agriotos品系在苹果园中喷雾均匀度、存活期及感染力的调查 总被引：1，自引：0，他引：1
调查结果表明,用常用的喷雾方法在苹果园喷施昆虫病原线虫 S.carpocapsae Agrio-tos 品系防治桃小食心虫,喷雾不够均匀,在一定程度上影响了线虫的寄生率。线虫在苹果园的土壤中存活期达一个月以上,并具有一定的感染力。线虫施到土中后,用大蜡螟诱测到的线虫数量及感染力随时间的增加部呈负指数下降,变化曲线分别为 Y=exp(1.72-0.19X),r=-0.989和 Y=exp(3.45-0.13X),r=0.989。 相似文献
8.
9.
昆虫信息化学物质的研究动向陈国发，张庆贺（沈阳林业部森林病虫害防治总站，１１００３４）由植物和害虫所产生的某些化学物质，在控制害虫行为中起着主要的作用。在本世纪前半叶，对植物与害虫的相互关系的研究中发现了许多次级植物化学物质，这些化学物质在昆虫寄主选... 相似文献
10.
11.
Fifteen species of dermestid beetles were recorded at ‘Evolution Canyon’ (EC), Lower Nahal Oren, Mt. Carmel, Israel. They
represent ~35% of known Israeli dermestid species. The following three species were recorded for the first time in Israel:Trogoderma svriaca Dalla Torre, 1911;Ctesias svriaca Ganglbauer, 1904; andAnthrenus (s.str.) jordaniens Pic, 1934. Adults of 13 species were collected on the more solar radiated, warmer and climatically more fluctuating south-facing
slope (SFS); ten species were collected on the opposite, north-facing slope (NFS), which was cooler and climatically more
stable. The abundance of adult dermestid beetles was 1.9 times higher on the SFS than on the NFS (86 and 47, respectively).
Species richness and abundance distribution at EC (three collecting stations on each slope and one at the valley bottom) were
significantly negatively correlated with the plant cover that consisted of trees and bushes (Spearmanr
s
,P=0.007 and 0.039, respectively) and perennials (Spearmanr
s
,P=0.039 and 0.077, respectively), indicating that non-woody plants were preferred by adult dermestid beetles. 相似文献
12.
Sergio Ovruski Martín Aluja John Sivinski Robert Wharton 《Integrated Pest Management Reviews》2000,5(2):81-107
We first discuss the diversity of fruit fly (Diptera: Tephritidae) parasitoids (Hymenoptera) of the Neotropics. Even though the emphasis is on Anastrepha parasitoids, we also review all the information available on parasitoids attacking flies in the genera Ceratitis, Rhagoletis, Rhagoletotrypeta, Toxotrypana and Zonosemata. We center our analysis in parasitoid guilds, parasitoid assemblage size and fly host profiles. We also discuss distribution patterns and the taxonomic status of all known Anastrepha parasitoids. We follow by providing a historical overview of biological control of pestiferous tephritids in Latin American and Florida (U.S.A.) and by analyzing the success or failure of classical and augmentative biological control programs implemented to date in these regions. We also discuss the lack of success of introductions of exotic fruit fly parasitoids in various Latin American countries. We finish by discussing the most pressing needs related to fruit fly biological control (classical, augmentative, and conservation modalities) in areas of the Neotropics where fruit fly populations severely restrict the development of commercial fruit growing. We also address the need for much more intensive research on the bioecology of native fruit fly parasitoids. 相似文献
13.
Epidemiology of Toxigenic Fungi and their Associated Mycotoxins for Some Mediterranean Crops 总被引：9，自引：0，他引：9
Antonio Logrieco Antonio Bottalico Giuseppina Mulé Antonio Moretti Giancarlo Perrone 《European journal of plant pathology / European Foundation for Plant Pathology》2003,109(7):645-667
Recent data on the epidemiology of the common mycotoxigenic species of Fusarium, Alternaria, Aspergillus and Penicillium in infected or colonized plants, and in stored or processed plant products from the Mediterranean area are reviewed. Emphasis is placed on the toxigenicity of the causal fungal species and the natural occurrence of well known mycotoxins (aflatoxins, ochratoxins, fumonisins, trichothecenes, zearalenone, patulin, Alternaria-toxins and moniliformin), as well as some more recently described compounds (fusaproliferin, beauvericin) whose toxigenic potential is not yet well understood. Several Fusarium species reported from throughout the Mediterranean area are responsible of the formation of mycotoxins in infected plants and in plant products, including: Fusarium graminearum, F. culmorum, F. cerealis, F. avenaceum, F. sporotrichioides and F. poae, which produce deoxynivalenol, nivalenol, fusarenone, zearalenone, moniliformin, and T-2 toxin derivatives in wheat and other small grains affected by head blight or scab, and in maize affected by red ear rot. Moreover, strains of F. verticillioides, F. proliferatum, and F. subglutinans, that form fumonisins, beauvericin, fusaproliferin, and moniliformin, are commonly associated with maize affected by ear rot. Fumonisins, were also associated with Fusarium crown and root rot of asparagus and Fusarium endosepsis of figs, caused primarily by F. proliferatum. Toxigenic A. alternata strains and associated tenuazonic acid and alternariols were commonly found in black mould of tomato, black rot of olive and citrus, black point of small cereals, and black mould of several vegetables. Toxigenic strains of A. carbonarius and ochratoxin A were often found associated with black rot of grapes, whereas toxigenic strains of A. flavus and/or P. verrucosum, forming aflatoxins and ochratoxin A, respectively, were found in moulded plant products from small cereals, peanuts, figs, pea, oilseed rape, sunflower seeds, sesame seeds, pistachios, and almonds. Finally, toxigenic strains of P. expansum and patulin were frequently found in apple, pear and other fresh fruits affected by blue mould rot, as well as in derived juices and jams. 相似文献
14.
《干旱区科学》2014,(6):782-782
正Journal of Arid Land(JAL)is an international journal(ISSN 1674-6767;CN 65-1278/K)for the natural sciences,sponsored by the Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences and Science Press.It is published by Science Press and Springer-Verlag Berlin Heidelberg bimonthly.JAL publishes original,innovative,and integrative research from arid and semiarid regions,ad 相似文献
15.
The genera ofMicrogaster Latreille 1804 andHygroplitis Thomson 1895 from China are presented systematically in this paper. Thirty-two species ofMicrogaster and three species ofHygroplitis are known in China. Diagnosis, character variation, distribution and host of each species among the two genera are presented,
including its host and distribution. Keys to the species ofMicrogaster andHygroplitis are given.
http://www.phytoparasitica.org posting Dec. 19, 2006. 相似文献
16.
Plant Viruses Transmitted by Whiteflies 总被引：18，自引：0，他引：18
David R. Jones 《European journal of plant pathology / European Foundation for Plant Pathology》2003,109(3):195-219
One-hundred and fourteen virus species are transmitted by whiteflies (family Aleyrodidae). Bemisia tabaci transmits 111 of these species while Trialeurodes vaporariorum and T. abutilonia transmit three species each. B. tabaci and T. vaporariorum are present in the European–Mediterranean region, though the former is restricted in its distribution. Of the whitefly-transmitted virus species, 90% belong to the Begomovirus genus, 6% to the Crinivirus genus and the remaining 4% are in the Closterovirus, Ipomovirus or Carlavirus genera. Other named, whitefly-transmitted viruses that have not yet been ranked as species are also documented. The names, abbreviations and synonyms of the whitefly-transmitted viruses are presented in tabulated form together with details of their whitefly vectors, natural hosts and distribution. Entries are also annotated with references. Whitefly-transmitted viruses affecting plants in the European–Mediterranean region have been highlighted in the text. 相似文献
17.
Liriomyza cicerina (Diptera: Agromyzidae) is an important pest on chickpea in Turkey. The objective of this study was to determine the parasitoids and rates of parasitism ofL. cicerina on chickpea (Cicer arietinum L.) during the 2005 and 2006 seasons in ?anl?urfa province, Turkey. Leaves with mines were sampled weekly and kept in the laboratory to observe and count emerging leafminer and parasitoid adults. Eight parasitoid species were collected: the braconidsOpius monilicornis Fischer andOpius tersus Foerster and the eulophidsDiaulinopsis arenaria (Erdös) andNeochrysocharis formosa (Westwood), which occurred in both the winter and summer seasons;Diglyphus crassinervis Erdös,Neochrysocharis ambitiosa Hansson,Neochrysocharis sericea (Erdös) andPediobius metallicus (Nees), which occurred only in the summer growing areas.Diaulinopsis arenaria was the predominant parasitoid with 4–7.7% parasitism rate whileN. ambitiosa andO. monilicornis were the second and third most predominant species. The results of these trials show that sinceDia. arenaria occurred throughout every season, it could potentially be used for control of the leafminerL. cicerina. 相似文献
18.
Plant–herbivore asynchrony necessitates augmentative releases of the exotic beetle,Zygogramma bicolorata,to enhance the biological control of P
arthenium hysterophorus
下载免费PDF全文
下载免费PDF全文 Systematic information on the quantitative impact of Z ygogramma bicolorata on the biology of P arthenium hysterophorus is crucial as the seeds of this weed continue to germinate from the accumulated soil seed bank throughout the year in the form of different germinating flushes, while the activity of the beetle ceases during winter as it enters diapause. Therefore, plant–herbivore interactions need to be explored to develop predictions of the overall impact of the introduced beetle on the weed. The findings revealed that defoliation by Z . bicolorata had a significant impact on the plant height, density and flower production in flushes F 3, F 4 and F 5, but not in F 1 and F 2 that exhibited longer periodicity, profuse branching, a longer flowering period and maximum flower production and contributed mostly to the existing seed soil bank. Therefore, total depletion of the existing soil seed bank was not possible. Consequently, the effect of augmentative field releases of laboratory‐reared beetles was explored on F 1 and F 2 in February for three consecutive years (2011–2013). Before initiating the trial, random soil samples were taken from the plots that were assigned to the paired treatments (i.e. with the beetle and without the beetle [insecticide‐treated]) and it was found that the seed bank in those samples did not differ. The single release of Z . bicolorata adults at five per plant at the six‐leaf stage significantly reduced the soil seed bank, compared to without the biocontrol agent, irrespective of the flushes at the end of the season. 相似文献
19.
M. Fortass S. Diallo 《European journal of plant pathology / European Foundation for Plant Pathology》1993,99(4):219-226
Broad bean mottle virus (BBMV) was transmitted from infected to healthy faba-bean plants by the curculionid weevilsApion radiolus Kirby,Hypera variabilis Herbst,Pachytychius strumarius Gyll,Smicronyx cyaneus Gyll, andSitona lineatus L. The latter appeared to be an efficient vector: acquisition and inoculation occurred at the first bite, the rate of transmission was c. 41%, and virus retention lasted for at least seven days.S. lineatus transmitted the virus from faba bean to lentil and pea, but not to the three genotypes of chickpea tested. This is the first report on the generaHypera, Pachytychius, andSmicronyx as virus vectors, and onA. radiolus, H. variabilis, P. strumarius, andS. cyaneus as vectors of BBMV.Out of 351 samples of food legumes with symptoms suggestive of virus infection, 16, 11, 19, and 17% of the samples of chickpea, lentil, pea, and common bean, respectively, were found infected when tested for BBMV in DAS-ELISA. This is the first report on the natural occurrence of BBMV in chickpea, lentil, pea, and common bean. The virus should be regarded as a food-legume virus rather than a faba-bean virus solely, and is considered an actual threat to food legume improvement programmes. 相似文献