Control of the Colorado potato beetle withBacillus thuringiensis varietyThuringiensis
Article
Accepted:
- 24 Downloads
- 2 Citations
Abstract
Field tests were conducted to determine the effectiveness of an experimental preparation ofBacillus thuringiensis var.thuringiensis against Colorado potato beetle infestations on potatoes and tomatoes. Applications were made weekly with a tractor-towed commercial sprayer at the rates of either 473, 946, or 2,838 ml. ofB.t.t. in 378.41 of water per 0.4 hectare. Significant reductions were observed in treated plots of all stages of the beetle. All untreated plants were completely defoliated by the end of the test due to beetle feeding. No significant differences were observed among the different treatment levels.
Key Words
Microbial control Colorado potato beetle Bacillus thuringiensisPreview
Unable to display preview. Download preview PDF.
Literature Cited
- 1.Burgerjon, A., G. Biache and P. Cals. 1969. Teratology of the Colorado potato beetle,Leptinotarsa decemlineata, as provoked by larval administration of the thermostable toxin ofBacillus thuringiensis. J Invertebr Pathol 14:274–278.CrossRefGoogle Scholar
- 2.Cantelo, W.W. and G.E. Cantwell. 1981. Colorado potato beetle on tomatoes: economic damage thresholds and control withBacillus thuringiensis. Research for Small Farms, Special Symposium, U.S. Dept. of Agric. pp. 56–61.Google Scholar
- 3.Cantwell, G.E. and W.W. Cantelo. 1981.Bacillus thuringiensis a potential control agent for the Colorado potato beetle. Am Potato J 58:457–468.Google Scholar
- 4.Cantwell, G.E., E. Dougherty and W.W. Cantelo. 1983. Activity of the B-exotoxin ofBacillus thuringiensis var.thuringiensis against the Colorado potato beetle and bacterial mutagenic response as determined by the Ames test. Environ Entomol 12:1424–1427.Google Scholar
- 5.Moiseenko, A.I. and L.V. Barybkina. 1977. Use of Bitoxibacillin for the control of Colorado potato beetleLeptinotarsa decemlineata, Zashch Rast Oct. p. 40.Google Scholar
Copyright information
© 1984 1984