Download or read book Biological Control of the Russian Wheat Aphid written by and published by . This book was released on 1993 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Control of the Russian Wheat Aphid written by and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Prospects for Biological Control of Russian Wheat Aphid Diuraphis Noxia written by C.A.B. International. Institute of Biological Control and published by . This book was released on 1988 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Control of Russian Wheat Aphid written by Dicky S. Yu and published by . This book was released on 1994 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Control of Russian Wheat Aphid on Conservation Reserve Program Grasses written by Michael Lee Racette and published by . This book was released on 1993 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Response Model for an Introduced Pest written by Sharron Sue Quisenberry and published by . This book was released on 1998 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Control of the Russian Wheat Aphid in Saskatchewan written by John F. Doane and published by . This book was released on 1991 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Temperature dependent Biological Control Model for the Treatment of Russian Wheat Aphid written by David Blaine Hogan and published by . This book was released on 2000 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecological and Molecular Genetics Studies of Russian Wheat Aphid Biological Control written by Ahmed Hassan Mohamed and published by . This book was released on 1995 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conservation Biological Control Through Agroecosystem Diversification written by Robert Gaynor Ahern and published by . This book was released on 2000 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1988 Importations and Shipments of Parasites for Biological Control of Russian Wheat Aphid written by Frank Ephriam Gilstrap and published by . This book was released on 1988 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interaction Between Biological Agents and Pesticides for Control of Russian Wheat Aphid written by D. S. Yu and published by . This book was released on 1994 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Mass rearing Techniques for Aphelinus Asychis Walker for Use in a Biological Control Program Against Russian Wheat Aphid written by Robin Whitaker-Deerberg and published by . This book was released on 1992 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interactions Among Biological Control Cultural Control and Barley Resistance to the Russian Wheat Aphid Diuraphis Noxia Kurdjumov in Colorado Kansas and Nebraska written by Paola Andrea Sotelo-Cardona and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Russian wheat aphid, Diuraphis noxia (Kurdjumov) (Hemiptera: Aphididae) (RWA), is an important pest in the U.S. Western Plains, causing hundreds of millions of dollars of losses to wheat and barley production through reduced yields and insecticide application costs. The objectives of this research were to evaluate the performance of two RWA-resistant barley varieties planted approximately one month earlier than normal in experimental fields at Fort Collins, Colorado; Tribune, Kansas; and Sidney, Nebraska during 2007, 2008, and 2009. The experimental design was a split-plot design with two main plot treatments (early and normal planting dates), and four split plot treatments (barley varieties) that were randomized within each main treatment plot. The varieties included two RWA-barley resistant varieties, Sidney and Stoneham, and the susceptible variety, Otis, under thiamethoxam-protected and unprotected regimes. Sampling of RWA, other cereal aphids, and natural enemy populations was conducted on four dates from mid May through early July. RWA populations collected from early-planted plots (first week of March) were significantly lower than normal-planted plots in 2007-2009 at the Fort Collins, Colorado and Tribune, Kansas sites. In samples collected from early planting date plots, RWA-resistant varieties yielded RWA populations similar to those found on the insecticide-treated susceptible variety at both Fort Collins and Tribune. At the Sidney, Nebraska site, very low RWA populations were present and there were no differences between either planting date or varietal treatments. The combined effect of early planting and RWA-resistant varieties reduced RWA populations at the Fort Collins, Colorado site in all three years. Results were similar at the Tribune, Kansas site in 2007, but differences due to planting date or variety were not observed in 2008 or 2009. The lowest RWA populations occurred at the Sidney, Nebraska site, were independent of planting date and varietal treatments. The RWA-resistant barley varieties had no negative impact on populations of other cereal aphids compared to those found on the susceptible variety, Otis at any of the three research sites. The only treatment effective in reducing other cereal aphids was the insecticide, thiamethoxam. There was also no clear response of populations of other cereal aphids to different planting date. Neither the RWA-resistant barley varieties nor the systemic, short residual action insecticide treatment had adverse affects on the abundance of natural enemies.
Download or read book Identification and Characterization of Resistance to the Russian Wheat Aphid in Small grain Cereals written by Jonathan Robinson and published by CIMMYT. This book was released on 1994 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Whiteflies and Aphids written by Dawn L. Reeves and published by Nova Science Publishers. This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whiteflies are one of the major insect pests of greenhouse production systems worldwide, feeding on a wide-range of greenhouse-grown horticultural crops. Whiteflies cause both direct damage by feeding on plant parts such as leaves as well as indirect damage by vectoring certain plant viral and bacterial diseases. In addition, since whiteflies feed within the phloem sieve tubes with their piercing-sucking mouthparts, they may excrete honeydew, a clear, sticky liquid that serves as a growing medium/food source for certain black sooty mould fungi. This book examines the biological control of whiteflies as well as aphids, which are serious pests of agricultural crops, particularly in cereal crops including winter wheat. Aphids induce stress to the wheat crop by damaging plant foliage, lowering the greenness of plants, and affecting productivity. Therefore, it is very important to monitor and prevent effectively wheat aphid for crop management. Additional chapters provide remote sensing data on aphid monitoring and prediction; and changes in the distribution of Russian wheat aphid biotypes in South Africa.
Download or read book Aphelinus Sp Nr Varipes Hymenoptera Aphelinidae as a Potential Biological Control Agent of Russian Wheat Aphid Diuraphis Noxia Mordvilko Homoptera Aphididae written by Sherry E. Lajeunesse and published by . This book was released on 1991 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
