FURTHER OBSERVATIONS ON THE INTEGRATED CONTROL OF THE FRUITTREE LEAFROLLER (LEPIDOPTERA: TORTRICIDAE) IN BRITISH COLUMBIA
- 1 November 1971
- journal article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 103 (11) , 1517-1519
- https://doi.org/10.4039/ent1031517-11
Abstract
Overwintering eggs of the fruittree leafroller, Archips argyrospilus (Walker), began to hatch 13 April 1970, and larval emergence was completed by 8 May. Individual egg masses hatched in an average of 4.3 days, but the total time for larval emergence in all egg masses spanned a 25-day period. No egg parasites were observed. Winter mortality of egg masses was only 2%.A pink bud spray of diazinon gave good control of the fruittree leafroller and did not affect biological control of spider mites. Chlorphenamidine showed promise, but trees sprayed with this material developed a high population of the McDaniel spider mite, Tetranychus mcdanieli McGregor, during the summer. Phosalone and tetrachlorvinphos reduced the incidence of fruittree leafroller damage below that of the nonsprayed check but did not provide satisfactory control.Keywords
This publication has 2 references indexed in Scilit:
- CONTROL OF THE FRUIT-TREE LEAF ROLLER AND NOTES ON ITS BIOLOGY IN BRITISH COLUMBIAThe Canadian Entomologist, 1970
- Codling Moth Control by Release of Radiation-Sterilized Moths in a Commercial Apple Orchard1Journal of Economic Entomology, 1969