Evaluation of a wettable powder formulation for the nuclear polyhedrosis virus of Anticarsia gemmatalis (Lep.: Noctuidae)
✍ Scribed by Medugno, Claudia C.; Ferraz, José M. G.; Maia, Aline de H. N.; Freitas, Cláudio C. L.
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 194 KB
- Volume
- 51
- Category
- Article
- ISSN
- 1526-498X
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✦ Synopsis
The inÑuence of di †erent carriers on the physical and biological stability of Baculovirus anticarsia wettable powder formulations was studied. The formulations were obtained by mixing the puriÐed polyhedra of B. anticarsia with a carrier and drying the suspension in a bench spray dryer. Bioassays with Anticarsia gemmatalis Hu bner showed that activity was maintained with the amorphous silica, attapulgite and kaolinite after a year of storage. In the presence of bentonite, activity declined 50% in the same period. All formulations, except kaolinite, maintained the physical parameters required of a good wettable powder. Kaolinite formulation showed reduction in wettability and particle agglomeration in storage.