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Enhancement of Physical Properties and Efficacy of Pesticide Spray Solution by Addition of Adjuvants  

Jin, Yong-Duk (Harzardous Substances Division, National Academy of Agricultural Science, RDA)
Lee, Hee-Dong (Pesticide Safety Division, National Academy of Agricultural Science, RDA)
You, Oh-Jong (Agro-materials management Division, RDA)
Kim, Jin-Bae (Harzardous Substances Division, National Academy of Agricultural Science, RDA)
Kwon, Oh-Kyung (Harzardous Substances Division, National Academy of Agricultural Science, RDA)
Publication Information
The Korean Journal of Pesticide Science / v.12, no.4, 2008 , pp. 421-428 More about this Journal
Abstract
This study was carried out to elucidate the effects of adjuvants on physicochemical properties and pest control efficacy of pesticide spray solution. Spray droplet sizes of pesticide solution decreased by addition of adjuvants even though its effect varied according to the pesticides. The adhesive effect of pesticides sprayed on target crops by addition of adjuvants varied according to the properties, the application methods, and the spray volume of pesticides. Wash-off of the deposited amount of active ingredients of the solution of tricyclazole WP and fenobucarb EC by simulated rainfall after spraying on rice plants dramatically reduced by adding adjuvants. The retained amount of active ingredients of the pesticides were $1.5{\sim}4.1$ times higher than those without adjuvants when subjected to simulated rainfall 6 hours after spraying. Addition of adjuvants to the propanil EC spray solution enhanced the control efficacy in barnyard grass, Echinocloa crus-galli Beauv. by $8{\sim}30%$, which showed a potential to reduce pesticide use.
Keywords
pesticide; adjuvant; pesticide spray solution; physicochemical property;
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Times Cited By KSCI : 1  (Citation Analysis)
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