نتایج جستجو برای: mealybug ladybird
تعداد نتایج: 1213 فیلتر نتایج به سال:
The harlequin ladybird, Harmonia axyridis, is a valuable asset in integrated pest management (IPM); however, issues related to low-temperature storage and transportation have resulted low hatching rate, while the use of pesticides may lead non-target effects against this natural enemy during field application. Fluctuating thermal regimes (FTR) been shown be beneficial storage, type concentratio...
The paper gives information on the invasion of Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) into north European part Russia. Asian ladybird is recorded for first time from Novgorod and Yaroslavl Regions. All records this alien species Russia Northern Caucasus are listed.
Vine mealybug Planococcus ficus Signoret (Hemiptera: Pseudococcidae) is an important phloem-feeding pest species in many grapevine producing areas worldwide. The economic damage of P. thought to be mainly caused by sooty mould on infested grape clusters and transmission plant viruses. Direct feeding plants (Vitis vinifera, L.) has only been vaguely described or otherwise completely discarded. p...
nasonovia ribisnigri (mosely) is one of the most important pests of the lettuce plant and it was reported for the first time in ahvaz in 2008. in order to investigate the dominant species of its natural enemies and their population fluctuations, sample were taken arbitrarily from fifty plants twice a week during the growing season in 2010-2012. in this study, ten species of predators, three spe...
A new mealybug species, Chorizococcus zoysiaesp. n., feeding on Zoysia tenuifolia (Poaceae), is described from Taiwan. Adult female, third-instar female, second-instar female and first-instar nymph were described and illustrated in this article. Keys are provides to (a) separate this new species from similar species of Chorizococcus and those of same genus on zoysia grasses and (b) to identify ...
Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae), one of the most serious pests of cassava worldwide, has recently reached Asia, raising significant concern over its potential spread throughout the region. To support management decisions, this article reports recent distribution records, and estimates the climatic suitability for its regional spread using a CLIMEX distribution mo...
The attachment ability of ladybird beetles Coccinella septempunctata was systematically investigated on eight types of surface, each with different chemical and topographical properties. The results of traction force tests clearly demonstrated that chemical surface properties, such as static/dynamic de-wettability of water and oil caused by specific chemical compositions, had no significant eff...
HEMPTINNE, J.-L., A.F.G. DIXON & E. WYSS 2003. Biological control of the rosy apple aphid, Dysaphis plantaginea (Passerini) (Homoptera: Aphididae): learning from the ecology of ladybird beetles. Pp. 33-41 in A.O. SOARES, M.A. VENTURA, V. GARCIA & J.-L. HEMPTINNE (Eds) 2003. Proceedings of the 8th International Symposium on Ecology of Aphidophaga: Biology, Ecology and Behaviour of Aphidophagous ...
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