Verticillium lecanii spore formulation using UV protectant and wetting agent and the biocontrol of cotton aphids.
Verticillium lecanii spores (10(8 )spores ml(-1)) suspended in 1% (w/v) montmorillonite SCPX-1374 and 1% (w/v) of the wetting agent, EM-APW#2, which is a polyoxyethylene, had approx. 80% survival after exposure to UV-C for 30 min and about 93% after exposure to UV-B for 6 h. In greenhouse testing, cotton aphid densities increased 14-fold over their initial density in 15 d without spore application. However, initial cotton aphid densities were decreased by 60% of the initial level when plants were treated with the spore formulation.
Lee
Jin Young
JY
Department of Chemical and Biological Engineering, Korea University, 1, Anam-dong, Sungbuk-ku, Seoul 136-701, Korea, kimsw@korea.ac.kr.
Kang
Seong Woo
SW
Yoon
Cheol Sik
CS
Kim
Jeong Jun
JJ
Choi
Dong Ro
DR
Kim
Seung Wook
SW
D000818:Animals; D001042:Aphids / Q000254:growth & development / Q000382:microbiology* / Q000469:parasitology*; D003368:Gossypium / Q000382:microbiology*; D010572:Pest Control, Biological / Q000379:methods*; D013171:Spores, Bacterial / Q000737:chemistry / Q000254:growth & development / Q000528:radiation effects; D020172:Verticillium / Q000737:chemistry / Q000502:physiology* / Q000528:radiation effects*; D014906:Wetting Agents
D014906:Wetting Agents