Effective Translocation of Four Systemic Insecticides Following Application to the Foliage and Cones of Douglas-Fir
- 1 April 1967
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 60 (2) , 575-578
- https://doi.org/10.1093/jee/60.2.575
Abstract
Bidrin® (3-hydroxy-N, N-dimethyl-cis-crotonamide dimethyl phosphate). Azodrin® (3-hydroxy-N-methyl-cis-crotonarnide dimethyl phosphate), methyl demeton, and dimethoate at concentrations of 0.5 to 8.0% by weight moved readily from foliage into cones of Douglas-fir. Pseudotsuga menziesii Mirb. Franco. Using the ratio of dead to living cone midges, Contarinia oregonesis Foote, it was shown that no effective translocation occurred from one side of the cone to the other or from the tip of the cone to the base. There was fair translocation from the base into the tip. Phytotoxicity of both cones and foliage increased with insecticide concentration. One-half to 1.0% concentrations applied so as to cover the foliage thoroughly is recommended for control of insects affecting Douglas-fir cones.This publication has 1 reference indexed in Scilit:
- PREVENTION OF INSECT-CAUSED SEED LOSS IN DOUGLAS-FIR WITH SYSTEMIC INSECTICIDESThe Forestry Chronicle, 1966