منابع مشابه
Characterization of Celery Mosaic Virus from Celery in Tehran Province
Background and Aims: Celery mosaic virus (CeMV) is one of the causal agents of viral diseases in celery (Apium graveolens). CeMV is a member of the Potyvirus genus in Potyviridae family. The virus is naturally transmitted by aphids in a non-persistent manner. During growing season 2006-2007 viral disease symptoms were observed in celery fields grown in Tehran Province (Bage daneshkade, Mohamads...
متن کاملFeeding location affects demographic performance of cabbage aphids on winter canola
The cabbage aphid, Brevicoryne brassicae L. (Hemiptera: Aphididae), is a perennial pest that specializes on plants of the Brassicaceae family, attacking winter canola (Brassica napus L.) mainly during and after flowering. Under field conditions, cabbage aphid colonizes the upper flowering canopy. Population dynamics of aphids in the flowering canopy could be regulated by differences in either p...
متن کاملAphids
Historically the diverse areas of communication research have rarely met, and this factor probably prompted my feeling that the order of chapter delivery in this book was counter-intuitive. Naturally our investigation of any communication system has always been heavily influenced by our own language, and the historical progress of research has broadly progressed 'down' from humans to other mamm...
متن کاملPhysiological modification of the host feeding site by cereal aphids (Homoptera: Aphididae).
Indole-3-acetic acid-l-14C and 14C-sucrose labels were used to study the effects of greenbugs, Schizaphis graminum (Rondani), and Russian wheat aphids, Diuraphis noxia (Mordvilko), on phloem function of wheat (Triticum aesticum L.). Greenbug feeding significantly reduced translocation from the immediate feeding site; however, phloem integrity was not impeded. In contrast, Russian wheat aphids h...
متن کاملLOWE: EFFECTS OF WEATHER ON APHIDS IN CROPS AND PAST1)ftE~ SOME EFFECTS OF WEATHER ON APHIDS IN CROPS
Pest insects are frequently held in check by natural means. The level of this control is influenced by the supply of food, the activity of parasitic organisms, including entomophagous insects and disease pathogens, and weather. Any enquiry into the importance of weather in insect ecology must include an examination of the effects of temperature (including freezing), humidity, wind (direction an...
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ژورنال
عنوان ژورنال: Hilgardia
سال: 1938
ISSN: 0073-2230
DOI: 10.3733/hilg.v11n09p459