A comparative study was conducted on the efficacy of mosquito larvicides between nucrobialencapsulated BTI (EBTI) and standard BTI (SBTI).The results showed that:(1) The residual efficacyof EBTI was remarkably higher ...A comparative study was conducted on the efficacy of mosquito larvicides between nucrobialencapsulated BTI (EBTI) and standard BTI (SBTI).The results showed that:(1) The residual efficacyof EBTI was remarkably higher than that of SBTI at 0.007-0.002×10^(-9)/L BTI concentration(P<0.01),the mosquito larva mortality of EBTI remained 100% until the 4th week, in contrast, the mosquito larvamortality of SBTI gradually and obviously declined from the 2nd to 4th week after treatment (X2~=8.17-24.08), and reached 0 at the 4th week.(2) The lowest BTI concentration of EBTI at which a high efficacypersisted for 4 weeks was 0.007×10^(-9)g/L BTI, the mosquito larva mortality remaining 100%.展开更多
From 1997 to 2000, China textile industry experienced a formidable reform, particularly in cotton textile sector, that was too much burdened with excessive spinning capacity for 40 million spindles. The central govern...From 1997 to 2000, China textile industry experienced a formidable reform, particularly in cotton textile sector, that was too much burdened with excessive spinning capacity for 40 million spindles. The central government decided to introduce some policies to streamline the textile industry, and entrusted the textile administrative body---State Bureau of the Textile Industry (SBTI) to carry out the decision. About 40 liaison officers of the SBTI worked in the entire country to implement the spindles tasks, of which Wang Tiankai, current vice president of China Textile and Apparel Council, was the commander in chief of this tough battle to get the industry out of trouble.展开更多
文摘A comparative study was conducted on the efficacy of mosquito larvicides between nucrobialencapsulated BTI (EBTI) and standard BTI (SBTI).The results showed that:(1) The residual efficacyof EBTI was remarkably higher than that of SBTI at 0.007-0.002×10^(-9)/L BTI concentration(P<0.01),the mosquito larva mortality of EBTI remained 100% until the 4th week, in contrast, the mosquito larvamortality of SBTI gradually and obviously declined from the 2nd to 4th week after treatment (X2~=8.17-24.08), and reached 0 at the 4th week.(2) The lowest BTI concentration of EBTI at which a high efficacypersisted for 4 weeks was 0.007×10^(-9)g/L BTI, the mosquito larva mortality remaining 100%.
文摘From 1997 to 2000, China textile industry experienced a formidable reform, particularly in cotton textile sector, that was too much burdened with excessive spinning capacity for 40 million spindles. The central government decided to introduce some policies to streamline the textile industry, and entrusted the textile administrative body---State Bureau of the Textile Industry (SBTI) to carry out the decision. About 40 liaison officers of the SBTI worked in the entire country to implement the spindles tasks, of which Wang Tiankai, current vice president of China Textile and Apparel Council, was the commander in chief of this tough battle to get the industry out of trouble.
