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Filtering by: Conference section Pesticide Resistance Committee Member Feyereisen, Rene Decade 1980-1989

Status, distribution and seasonal variation of filbert aphid resistance to selected insecticides in the Willamette Valley, Oregon

Creator:

Katundu, Juma

Abstract:

Levels of resistance to six selected insecticides of eleven field populations of the filbert aphid Mvzocallis coryli (Goetze) were determined by using the leaf-dip residue technique. Test insecticides included compounds widely used in commercial filbert orchards, namely, carbaryl, diazinon, endosulfan, phosalone, fenvalerate and oxydemetonmethyl. Aphid samples were collected within a...

Resource Type:

Masters Thesis

Full Text:

concept of changing pesticide-use patterns as a resistance-delaying tactic was further examined by
Biochemical studies on the mosquitocidal delta endotoxin of Bacillus thuringiensis subsp. israelensis

Creator:

Pollock, Martin L.

Abstract:

The cytolytic properties of the mosquitocidal 25 Kd protein deltaendotoxin of Bacillus thuringiensis subsp. israelensis (Bti) was studied using the human erythrocyte as a target cell. Both a fixedtime and a kinetic hemolytic bioassay were developed in order to screen a variety of treatments for their influence on the toxinerythrocyte...

Resource Type:

Masters Thesis

Full Text:

properties of the thermodynamic stability of the Bti toxin that confers protease resistance, denaturation