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3.3 AERIAL RELEASE SYSTEM FOR TRICHOGRAMMA MINUTUM RILEY IN PLANTATION FORESTS

Published online by Cambridge University Press:  31 May 2012

C.A. Hope ,
S.A. Nicholson  and
J.J. Churcher
C.A. Hope
Affiliation:
Ontario Ministry of Natural Resources, Vivian Work Centre, R.R. #3, Stouffville, Ontario, Canada L4A 7X4
S.A. Nicholson
Affiliation:
Pestechcon, Inc., King City, Ontario, Canada L0G 1K0
J.J. Churcher
Affiliation:
Pest Management Section, Ontario Ministry of Natural Resources, PO Box 820, Sault Ste. Marie, Ontario, Canada P6A 5N5
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Abstract

An aerial dispersal system was developed for inundative release of insect eggs, Anagasta kuehniella (Zeller) and Sitotroga cerealella (Olivier), parasitized by Trichogramma minutum Riley. The equipment was used successfully in field tests over a 4-year period (1982–1985) in a coniferous plantation forest near Hearst, Ont. The release equipment consisted of simple electrical components, mechanical components from a small grain planter, and a centrifugal slinger used for aerial seeding of jack pine. The equipment was mounted on a Bell® 47 helicopter, flown at about 25 m above the ground. A swath width of 15 m was attained using this system. Application rates ranged from 12.3 to 263.0 g ♀ ♀ parasitoids per hectare (0.6–25 × 106 ♀ ♀ parasitoids per hectare) during the 4 years of tests.

Résumé

Un système de distribution a été développé pour le relâchement d'inondation des oeufs d'insectes, Anagasta kuehniella (Zeller) et Sitotroga cerealella (Olivier), parasités par Trichogramma minutum Riley. L'appareil a été utilisé avec succès pour les essais au champs pendant une période de 4 ans (1982–1985) dans un forêt de conifères de plantation, près de Hearst, Ont. L'appareil de relâchement s'est composé des composants électriques simples, des composants mécaniques d'une petite planteuse de grains, et d'une jeteuse centrifuge utilisée pour ensemencement aérien de pin gris. L'appareil a été monté sur un hélicoptère de marque Bell® 47, qui a volé à 25 m près au-dessus de la terre. Une largeur de bande de 15 m a été atteinte avec ce système. Les taux d'applicage ont varié de 12,3 à 263,0 g ♀ ♀ par hectare (0,6–25 × 106 ♀ ♀ de parasitoïdes par hectare) pendant les 4 ans d'essais.

Type
Research Article
Information
The Memoirs of the Entomological Society of Canada , Volume 122 , Supplement S153 , 1990 , pp. 38 - 44
Copyright
Copyright © Entomological Society of Canada 1990

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References

REFERENCES

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