EFFICACY OF VARIOUS BACILLUS THURINGIENSIS BERLINER VAR. KURSTAKI FORMULATIONS AND DOSAGES IN THE FIELD AGAINST THE HEMLOCK LOOPER, LAMBDINA FISCELLARIA FISCELLARIA (GUEN.) (LEPIDOPTERA: GEOMETRIDAE), IN NEWFOUNDLAND

Author:

West R.J.,Raske A.G,Retnakaran A.,Lim K.P.

Abstract

AbstractAerially applied Thuricide 48LV, Thuricide 64B, Futura XLV, and water-based formulations of Bacillus thuringiensis Berliner var. kurstaki (B.t.), were tested for effectiveness to control the hemlock looper, Lambdina fiscellaria fiscellaria (Guen.), in balsam fir, Abies balsamea (L.) Mill., stands. Thuricide 64B, applied twice at a dosage of 30 Billion International Units (BIU) per hectare in 1.78 L/ha, was the most effective, reducing the larval population by 100%.

Publisher

Cambridge University Press (CUP)

Subject

Insect Science,Molecular Biology,Physiology,Ecology, Evolution, Behavior and Systematics,Structural Biology

Reference23 articles.

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2. FIELD RESPONSE OF THE SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (LEPIDOPTERA: TORTRICIDAE), TO DOSAGE AND VOLUME RATES OF COMMERCIAL BACILLUS THURINGIENSIS

3. A simple device for collecting aerial-spray deposits from calibration trials and spray operations;Randall;Can. For. Serv. Bi-mon. Res. Notes,1980

4. An account of the eastern hemlock looper, Ellopia fiscellaria Gn., on balsam fir;Watson;Sci. Agric.,1934

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