Dieldrin Resistance in Cosmopolites sordidus in New South Wales, Australia13

1974 ◽  
Vol 67 (3) ◽  
pp. 446-447 ◽  
Author(s):  
G. J. Shanahan ◽  
G. J. Goodyer
Keyword(s):  
New South ◽  
New South Wales ◽  
Cosmopolites Sordidus ◽  
South Wales

Insecticides for the control of dieldrin-resistant banana weevil borer, Cosmopolites sordidus Germar

1977 ◽  
Vol 17 (86) ◽  
pp. 499 ◽  
Author(s):  
WE Wright
Keyword(s):  
Active Ingredient ◽  
New South ◽  
New South Wales ◽  
Field Trials ◽  
Effective Control ◽  
Cosmopolites Sordidus ◽  
Banana Weevil ◽  
South Wales ◽  
Surrounding Soil

Field trials were carried out in the Brunswick River district of New South Wales from 1971 to 1975 to evaluate insecticides against dieldrin-resistant banana weevil borer, Cosmopolites sordidus Germar. Effective control was obtained by spraying the bases of plants and surrounding soil to a radius of 30 cm in spring and autumn with pirimiphos-ethyl and chlorpyrifos emulsions at 2.24 kg active ingredient ha-1 (1.12g per plant) per application. Chlordecone dust, pirimiphos-ethyl granules and chlorpyrifos powder sprinkled by hand at 2.8 kg ha-1 a.i. (1.42 g per plant) per application also gave effective control and could be used where water is unavailable.

Cyclodiene-BHC resistance in Cosmopolites sordidus (Germ.) (Coleoptera, Curculionidae) in New South Wales, Australia

1974 ◽  
Vol 64 (1) ◽  
pp. 1-7 ◽  
Author(s):  
V. E. Edge
Keyword(s):  
New South ◽  
New South Wales ◽  
Cosmopolites Sordidus ◽  
Base Line ◽  
Insecticide Application ◽  
South Wales ◽  
History Of ◽  
Banana Plantations ◽  
Base Line Data

AbstractDieldrin, aldrin and γBHC in kerosene were applied topically to adults of Cosmopolites sordidus (Germ.) collected from banana plantations with no history of insecticide application and from plantations that had been treated regularly with dieldrin for many years. Adults from the latter source were highly resistant to dieldrin and aldrin, while resistance to γBHC was lower; those from the former source were susceptible and the results could be used as base line data. Females collected in spring from two untreated plantations showed LD50 values for dieldrin varying by a factor of 1·5, while females collected in the spring were 1·7 times more susceptible than those collected in the autumn from the same plantation. A discriminating dose of 1 μl of 1·0% dieldrin per weevil is considered suitable for detecting resistant individuals.

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