Cassava is an important staple food in Africa and a major source of carbohydrates for 800 million people globally. However, cassava suffers severe yield losses caused by many factors including pests diseases. A devastating disease brown streak (CBSD) the ipomoviruses (CBSIs) (family Potyviridae ), virus (CBSV), Ugandan (UCBSV). Spread CBSD mainly through planting infected stem cuttings used pro...

Pioneer Hi-Bred International, Inc. (referred to as “Pioneer” hereafter) has petitioned APHIS (USDA-APHIS Petition Number #11-244-01p, referred to as “Petition”) for a determination that genetically engineered (GE) corn (Zea mays) event DP-ØØ4114-3 (referred to as “4114 maize” or “4114”) is unlikely to pose a plant pest risk and, therefore, is no longer a regulated article under regulations at ...

Subspecies Dysaphis pavlovskiana indica Chakrabarti & Medda, 1993 is given species status (Dysaphis indica Chakrabarti & Medda, 1993, new status). Aphis plantaginis asiatica Daniyarova, 1979 is a synonym of Aphis taraxacicola (Börner, 1940). The nomen nudum Uroleucon (Uromelan) lehri Zaitzev, Lelej, Storozhenko & Kurzenko, 2006 is recognized as referring to Uroleucon (Uromelan) campanulae (Kalt...

Mark K. Nakhla, Kristina J. Owens, Wenbin Li, and Gang Wei, National Plant Germplasm and Biotechnology Laboratory, United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) PPQ-CPHST; Andrea M. Skantar, Nematology Laboratory, USDA Agricultural Research Service; and Laurene Levy, National Plant Germplasm and Biotechnology Laboratory, USDA-APHIS-PPQ-CPHST, ...

The background to this work on the parthenogenetic winged form of Aphis fabae Scop, is given in two earlier papers (Kennedy & Booth, 1963a, b: referred to hereafter by date only), where it was shown that aphids allowed to fly and alight freely in a laboratory flight chamber become increasingly ready to settle down, feed and larviposit on a leaf the longer they have flown. Flight and settling ar...

J. Econ. Entomol. 84(2). 638-643 (1991) ABSTRACT Alate aphids (Homoptera: Aphididae) were collected at weekly intervals in 1988 in six California sugarbeet fields-three on each side of a boundary line which separates overwintered spring harvest beet fields in Solano County from fall harvested fields in Yolo County. Alate aphids landing on a yellow board during a 45-min morning collection period...