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Biotypes B and Q of Bemisia tabaci and their relevance to neonicotinoid and pyriproxyfen resistance.
- A. Horowitz, S. Kontsedalov, V. Khasdan, I. Ishaaya
- Biology, Medicine
- Archives of insect biochemistry and physiology
- 1 April 2005
Resistance monitoring for Bemisia tabaci field populations to the juvenile hormone mimic, pyriproxyfen, was conducted from 1996 to 2003 in commercial cotton fields in two areas of Israel and resulted in continued pyri proxyfen resistance, predominantly of Q biotype. Expand
Current status and future perspectives of the use of insect growth regulators for the control of stored product insects
Examining the new generations of IGRs and new approaches to the application and usage of these materials provides some new perspectives on the potential utilization of I GRs for the protection of post-harvest commodities. Expand
Biotype Q ofBemisia tabaci identified in Israel
- A. Horowitz, I. Denholm, K. Gorman, J. L. Cenis, S. Kontsedalov, I. Ishaaya
- 1 February 2003
Results of this survey provide the first published evidence for the occurrence of the B. tabaci Q biotype, alongside the more widely distributed B biotype. Expand
Invertase and amylase activity in the armoured scales Chrysomphalus aonidum and Aonidiella aurantii.
At higher temperatures such as 32°C, the Florida red scale invertase was found to be physiologically better adapted than the California red scale's and more stable at high temperatures. Expand
Protease and amylase activity in larvae of the Egyptian cotton worm, Spodoptera littoralis☆
In the larvae of the Egyptian cotton worm, Spodoptera littoralis, the optimum for protease activity was found to be a reaction mixture of pH 11·0 plus 0·75% casein at 37°C for 60 min. For amylase… Expand
Emamectin, a novel insecticide for controlling field crop pests.
Under standard laboratory conditions, emamectin exhibits a considerable activity on the whitefly Bemisia tabaci (Gennadius) and the leafminer Liriomyza huidobrensis (Blanchard). Expand
Insecticides in Agriculture and Environment: Retrospects and Prospects
Effects of some insect growth regulators on natural enemies of scale insects (Hom.: Coccoidea)
Effects of four insect growth regulators: buprofezin, fenoxycarb pyriproxyfen and chlorfluazuron, at concentrations recommended for agricultural use on six species of natural enemies of homopteran pests are reported and discussed. Expand
Dynamics of resistance to the neonicotinoids acetamiprid and thiamethoxam in Bemisia tabaci (Homoptera: Aleyrodidae).
- A. Horowitz, S. Kontsedalov, I. Ishaaya
- Biology, Medicine
- Journal of economic entomology
- 1 December 2004
In cross-resistance assays with both neonicotinoids, the strain that had been selected with thiamethoxam for 12 generations demonstrated almost no cross- Resistance to acetamiprid, whereas the acetamIPrid-selected strain exhibited high cross-Resistance of >500-fold to thiamETHoxam. Expand