EFFECTS OF SELECTED JUVENILE HORMONE ANALOGS ON SIXTH-INSTAR LARVAE OF THE EASTERN SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA CLEMENS (LEPIDOPTERA: TORTRICIDAE)
- 1 December 1989
- journal article
- research article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 121 (12) , 1111-1116
- https://doi.org/10.4039/ent1211111-12
Abstract
The effectiveness of seven insect juvenile hormone analogs (JHAs) in disrupting metamorphosis of the eastern spruce budworm, Choristoneura fumiferana Clemens, was determined by applying the compounds topically to early sixth-instar larvae and monitoring subsequent development. Fenoxycarb showed promising control potential, with an LC50 of 0.26 μg per insect. Relative lethal effectiveness, based on LC50 values, was Fenoxycarb > ZR9892 > ZR8487 > S-71639 > methoprene > ZR9582 > ZR10151. Some of the JHAs tested may be useful in an integrated spruce budworm control program. L’efficacité de sept analogues de l’hormone juvénile (JHA) à perturber la métamorphose de la tordeuse des bourgeons de l’épinette, Choristoneura fumiferana Clemens, a été mesurée par application locale de ces substances à de jeunes larves du stade six, suivie de l’observation du développement. Le Fenoxycarb, avec une CL50 de 0,26 μg par insecte, a montré un pouvoir léthal intéressant. L’efficacité léthale relative basée sur la valeur de la CL50 sétablit comme suit : Fenoxycarb > ZR9892 > ZR8487 > S-71639 > methoprene > ZR9582 > ZR10151. Certains des JHA testés pourraient être utilisés dans un programme de lutte intégrée contre la tordeuse.This publication has 11 references indexed in Scilit:
- EFFECTS OF INSECT GROWTH REGULATORS ON THE WESTERN SPRUCE BUDWORM (CHORISTONEURA OCCIDENTALIS) (LEPIDOPTERA: TORTRICIDAE): I. LETHAL EFFECTS OF LAST INSTAR TREATMENTSThe Canadian Entomologist, 1979
- Insect Growth Regulators with Juvenile Hormone ActivityAnnual Review of Entomology, 1975
- Synthetic Juvenile Hormone: Effect on Pupae of the Spruce Budworm1Journal of Economic Entomology, 1973
- HORMONAL INDUCTION OF SUPERNUMERARY INSTARS IN THE SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (LEPIDOPTERA: TORTRICIDAE)The Canadian Entomologist, 1973
- Probit AnalysisTechnometrics, 1973
- BLOCKING OF EMBRYONIC DEVELOPMENT IN THE SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (LEPIDOPTERA: TORTRICIDAE), BY SOME COMPOUNDS WITH JUVENILE HORMONE ACTIVITYThe Canadian Entomologist, 1970
- Metepa as a Chemosterilant for the Adult Male Spruce Budworm, Choristoneura fumiferana12Journal of Economic Entomology, 1970
- A Synthetic Diet for the Spruce Budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: Tortricidae)The Canadian Entomologist, 1965
- Multiple Range and Multiple F TestsPublished by JSTOR ,1955
- A Method of Computing the Effectiveness of an InsecticideJournal of Economic Entomology, 1925