نتایج جستجو برای: woolly aphid

تعداد نتایج: 6490  

Journal: :Cell reports 2015
Vincent J Lynch Oscar C Bedoya-Reina Aakrosh Ratan Michael Sulak Daniela I Drautz-Moses George H Perry Webb Miller Stephan C Schuster

Woolly mammoths and living elephants are characterized by major phenotypic differences that have allowed them to live in very different environments. To identify the genetic changes that underlie the suite of woolly mammoth adaptations to extreme cold, we sequenced the nuclear genome from three Asian elephants and two woolly mammoths, and we identified and functionally annotated genetic changes...

2017
Isa An Ibrahim Ibiloglu Omer Akburak Sedat Akdeniz

© 2017 Indian Dermatology Online Journal | Published by Wolters Kluwer Medknow A 33‐year‐old woman presented with an asymptomatic skin‐colored papule with a central, outward woolly tuft, clinically appearing as white hair on the scalp skin. On physical examination, a 1 cm skin‐colored papule with woolly hair tuft arising from the lesion was found on the hairy skin [Figure 1]. No radiological in...

Journal: :Environmental entomology 2016
Aaron S Weed Joseph S Elkinton Nina K Lany

Insect populations are affected by density-dependent and density-independent factors, and knowing how these factors affect long-term population growth is critical to pest management. In this study, we experimentally manipulated densities of the hemlock woolly adelgid on eastern and western hemlock trees in the western USA to evaluate the effects of density and host species on hemlock woolly ade...

Journal: :Cancer research 1976
S A Mayyasi D L Larson M Ahmed

Factors involved in the development of a human oncornavirus vaccine are discussed. The isolation and purification of subviral gp69/71 antigenic components enhance the feasibility of developing safe vaccine. The recent isolation of a C-type virus (the HL-23) from a human leukemic patient and its similarity to the simian sarcoma virus presents us with a unique opportunity to test the safety and p...

2013
Mazen Ateyyat

Four insecticides were tested for their suitability to an integrated pest management program of woolly apple aphid (WAA). The tested insecticides were imidacloprid, pirimicarb, cartap and petroleum oil. Three indices were developed to determine the degree of selectivity of studied insecticides and to determine their suitability to WAA IPM program. WAA index used to measure the efficacy of the i...

2014
Xiao-Feng Liu Xiang-Shun Hu Mike A. Keller Hui-Yan Zhao Yun-Feng Wu Tong-Xian Liu

The tripartite interactions in a pathosystem involving wheat (Triticum aestivum L.), the Barley yellow dwarf virus (BYDV), and the BYDV vector aphid Sitobion avenae were studied under field conditions to determine the impact of these interactions on aphid populations, virus pathology and grain yield. Wheat varietal resistance to BYDV and aphids varied among the three wheat varieties studied ove...

Journal: :Deutsches Aerzteblatt Online 2012

Cotton aphid, Aphis gossypii Glover (Hem.: Aphididae) is one of the most important pests in greenhouses and farms that decreases the quantity and quality of the product. Besides several plant viruses transmit by this pest such as cucumber mosaic virus and watermelon mosaic virus. The aim of this study was to evaluate the effect of cotton aphid feeding on some physiological parameters that are i...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید