Phytoparasitica (1997) 25, 101S-110S

A. Navon, Sara Keren, Shlomit Levski, A. Grinstein and Y. Riven (1997)
Granular feeding baits based on Bacillus thuringiensis products for the control of lepidopterous pests
Phytoparasitica 25 (Suppl.), S101-S110
Abstract: Bacillus thuringiensis (Bt) spray products are devoid of protection against undesirable environmental conditions (UV light, heat, dew, phylloplane materials), and are partially effective against bollworm larvae. To improve this situation, we embedded the spore-crystal product in a granular feeding bait formulation. The granules were made of wheat meal used as both a carrier and a feeding stimulant; yeast extract also was incorporated into the granules, to stimulate larval feeding. A combination of Bt subsp. kurstaki and aizawai products was used in the granular formulation, to widen the host-range of the microbe against lepidopteran insects. The most effective size of granules, as studied in a controlled experiment in a dispersion tower, ranged between 149 and 210 µ. The granular product dusted on cotton was more active than the Bt spray (Dipel) against Earias insulana. The present paper evaluates other Bt adjuvants and formulations.
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Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
formulation/storage of bioagents

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Earias insulana	Cotton (Gossypium)	Israel
Bacillus thuringiensis var. kurstaki (entomopathogen)	Earias insulana	Cotton (Gossypium)	Israel