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Comparison of Four Insecticides for the Control of the Common Green Capsid, Lygocoris pabulinus (L.) (Heteroptera‐Miridae), on Apple Trees
Author(s) -
Wightman J. A.
Publication year - 1971
Publication title -
plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.928
H-Index - 85
eISSN - 1365-3059
pISSN - 0032-0862
DOI - 10.1111/j.1365-3059.1971.tb00513.x
Subject(s) - miridae , malathion , biology , orchard , heteroptera , toxicology , horticulture , parathion , pesticide , botany , agronomy
SUMMARY Single sprays of DDT, malathion, azinphos‐methyl and vamidothion were applied to apple trees at petal fall in 1967 and 1968 for the control of Lygocoris pabulinus in a commercial orchard in the west of England. The degree of control was assessed by sampling the number of capsids and newly damaged twigs in each treatment after spraying. Control on all sprayed trees was virtually complete in 1967. In the following year DDT, azinphos‐methyl and vamidothion gave 74, 67 and 81 per cent control respectively, whereas no L. pabulinus was found on malathion‐treated trees and only 0.2 per cent of the twigs assessed for damage showed recent feeding punctures. It was concluded that vamidothion and azinphos‐methyl gave as good control of this species as DDT and that malathion gave better control.