نتایج جستجو برای: whitefly parasitoid
تعداد نتایج: 6035 فیلتر نتایج به سال:
Soybean is one of the important food commodities in Indonesia which occupies third position after rice and corn. In 2020, soybean production reached 632.3 tons but decreased by 3.01% to 613.3 2021 predicted continue decline until 2024. Whitefly (Bemisia tabaci) pests on soybeans. also a viral vector. The purpose this study was obtain refugia plants were effective suppressing whitefly pest popul...
Distribution and importance of woolly whitefly (Aleurothrixus floccosus) (Maskell) (Hemiptera: Aleyrodidae), was studied in Ethiopia with an evaluation of treatments against it. Results showed that the pest is distributed in most citrus-growing parts of the country equally infesting all types of citrus crops. Only one pupal parasitoid, Amitus sp., was recorded at Melkaoba. During 2006-2007, eig...
Abstract Background The greenhouse whitefly, Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae) constitutes key pests of greenhouses and field crops, which have developed pesticide resistance over the years. It has emerged as a difficult pest to manage owing its indiscriminate exposure higher dosages insecticides. use natural enemies is environmentally safe alternative management tacti...
The mode of penetration of parasitoids belonging to the genus Eretmocerus into whitefly larvae and their immature development were examined. Examination included scanning electron microscopy and light microscopy of stained and unstained whole mounts and sections. The Eretmocerus larva pierces the venter of its host shortly after hatching, and subsequently enters the host through the same hole. ...
Abstract Andhra Pradesh is one of the important coconut-growing states in India with an area 0.115 million hectares producing 1,567.60 nuts annually. The exotic pest rugose spiraling whitefly (RSW), Aleurodicus rugioperculatus Martin (Hemiptera: Aleyrodidae) has entered 2016 first reports from Kerala and Tamil Nadu 2017. IPM strategies which included installation yellow sticky traps @12/acre, r...
A new, biparental species of the genus Encarsia Förster (Hymenoptera: Aphelinidae), E. hera Lahey & Andreason, sp. nov. , is characterized based on morphological and molecular data. The parasitoid was reared from puparia its host, an undescribed grass-feeding aleyrodine Aleurocybotus Quaintance Baker (Hemiptera: Aleyrodidae) collected in Gainesville, Florida. same whitefly newly recorded Ch...
A major component of the evaluation of biological control agents is the study and comparison of their biology, including the reproductive mode. In hymenopteran parasitoids, reproductive modes include thelytoky and arrhenotoky. Since a thelytokous population produces only females, it is assumed that they may be better suited for biological control than an arrhenotokous population. Here we compar...
There is relatively little information available concerning the physiological and biochemical interactions between whiteflies and their parasitoids. In this report, we describe interactions between aphelinid parasitoids and their aleyrodid hosts that we have observed in four host-parasite systems: Bemisia tabaci/Encarsia formosa, Trialeurodes vaporariorum/E. formosa, B. tabaci/Eretmocerus mundu...
Facultative bacterial endosymbionts are associated with many arthropods and are primarily transmitted vertically from mother to offspring. However, phylogenetic affiliations suggest that horizontal transmission must also occur. Such horizontal transfer can have important biological and agricultural consequences when endosymbionts increase host fitness. So far horizontal transmission is consider...
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