The oviparous female and wingless male of Aphis verbasci from Poland and the United Kingdom are described and illustrated in detail for the first time, with notes on biology, distribution and host plants. 

Field surveys of soybean aphid, Aphis glycines Matsumura, and its natural enemies, as well as natural enemy exclosure experiments, were conducted during 2003 and 2004 in soybean fields near Langfang, China. In 2003, aphid density increased six-fold during 12 d in July from 66+/-12 per 10 plants to a seasonal peak of 401+/-79 per 10 plants. Aphid density remained high for another 10 d and declin...

The United States Department of Agriculture (USDA), Animal and Plant Health Inspection Service (APHIS), has prepared this decision document that is consistent with the requirements of the National Environmental Policy Act of 1969 (NEPA), as amended, the Council of Environmental Quality (CEQ) regulations implementing NEPA, and USDA departmental and APHIS NEPA-implementing regulations and procedu...

Investigations on the species composition and host range of aphids on ornamental greenhouse plants in Bulgaria was conducted over a period of five years, from 2008 to 2012. Twenty greenhouses, growing ornamentals for landscaping, plant collections and other purposes were observed. They were located in the regions of Sofia, Plovdiv, Smolyan, Pavlikeni, Varna and Burgas. The total number of colle...

Photo-identification is a non-invasive option for mark-recapture. Here, we tested the effectiveness of APHIS, semi-automated photo-identification software, to distinguish between individual Bahamian Racers (Cubophis vudii vudii) on island Eleuthera, The Bahamas. Over 10 months, photographed 50 Racers. We first identified individuals by manually comparing colouration and scale patterns in pileus...

The soybean aphid (Aphis glycines Matsumura) is a threat to soybean production in the Midwestern United States. Varieties containing the Rag1 soybean aphid resistance gene have been released with limited success in reducing aphid populations. Furthermore, virulent biotypes occur within North America and challenge the durability of single-gene resistance. Pyramiding resistance genes has the pote...

The aphid-ant mutualistic relationships are not necessarily obligate for neither partners but evidence is that such interactions provide them strong advantages in terms of global fitness. While it is largely assumed that ants actively search for their mutualistic partners namely using volatile cues; whether winged aphids (i.e., aphids' most mobile form) are able to select ant-frequented areas h...