Zobrazeno 1 - 10
of 268
pro vyhledávání: '"Insect investigations"'
Autor:
Ellsworth, Peter C., Barkley, Virginia, Dennehy, Tim, DeGain, Ben, Ellingson, Bob, Naranjo, Steve, Sims, Maria
When a product performs better or worse than expectations, there are many biological, ecological, and operational factors that must be examined. Genetic resistance to the pesticide itself is often a concern. The control interval depends on the ecolog
Externí odkaz:
http://hdl.handle.net/10150/198208
In the Western U.S., Lygus spp. (Hemiptera: Miridae) can cause major losses to cotton, vegetables, seed crops, and a variety of other crops. However, the economic impact of this pest remains largely undocumented in most crops. Two major data sources
Externí odkaz:
http://hdl.handle.net/10150/198220
Autor:
Ellsworth, Peter C., Barkley, Virginia
Lygus hesperus (Knight) has been the number one pest of Arizona cotton since 1998. With advances in the selective management of Arizona cotton’s other two key pests (i.e., Bemisia tabaci and Pectinophora gossypiella), there has been less opportunit
Externí odkaz:
http://hdl.handle.net/10150/198176
Autor:
Naranjo, Steven E., Akey, David H.
The integrated control concept emphasizes the importance of both chemical and biological control for pest suppression in an agricultural system. A two-year field study was conducted to evaluate the selectivity of acetamiprid for controlling sweetpota
Externí odkaz:
http://hdl.handle.net/10150/198154
Autor:
Barkley, Virginia, Ellsworth, Peter C.
Whiteflies and Lygus bugs continue to be key pests of Arizona cotton. Some of our most popular and time-tested chemicals are still providing efficacy toward Lygus or whiteflies when used in a timely manner. However, promising new chemicals may also b
Externí odkaz:
http://hdl.handle.net/10150/198153
Autor:
Ellsworth, Peter C., Barkley, Virginia
The focus of our 2002 field study was to answer a fundamental question in insect control. Once spraying has begun for a particular pest, when should it stop? In this case, we are faced with the question of when to discontinue sprays for Lygus hesperu
Externí odkaz:
http://hdl.handle.net/10150/197949
Season-long protection from pink bollworm (PBW), Pectinophora gossypiella (Saunders), damage has been outstanding each year, since 1996, in NuCOTN 33B7 (Bt) commercial cotton plantings in Arizona. Cotton is a perennial plant and whether or not the in
Externí odkaz:
http://hdl.handle.net/10150/197917
Autor:
Denney, Timothy J., Shriver, Laura, Sims, Maria A., Holley, Danny, Carrière, Yves, Tabashnik, Bruce, Antilla, Larry, Whitlow, Mike
We summarize information on the performance of Bt cotton against pink bollworm (PBW), Pectinophora gossypiella, in Arizona following six years of use of this new technology. Monitoring of PBW susceptibility to Bt toxin Cry1Ac was conducted annually s
Externí odkaz:
http://hdl.handle.net/10150/197950
Tobacco budworm (TBW), Heliothis virescens (F.), larvae were highly susceptible to feeding on Bt cotton leaves or flower buds with 100% and 96% mortality occurring within 4 days, respectively, compared to an average mortality of 95% for cabbage loope
Externí odkaz:
http://hdl.handle.net/10150/197915