Airports are stepping up efforts to reduce populations of mosquitoes that transmit the Zika virus in order to stop its spread, the UN aviation agency stated Thursday. In the case of Bt corn targeting the CRW, every single hectare planted in recent years expresses substantially higher volumes of Bt endotoxins than the ~.2 kgs of insecticides applied on the average hectare for CRW handle (.19 pounds/acre Added file 1 : Table S12). MON 88017 expresses .62 kgs/ha of Cry 3Bb1, whilst DAS 59122-7 expresses two Cry proteins totaling two.
eight kgs/ha, 14-fold much more than the insecticides displaced Added file 1 : Table S22. SmartStax GE corn synthesizes six Cry proteins, 3 targeting the ECB, and 3 the CRW. Total Cry protein production is estimated at 4.two kgs/ha (three.7 pounds/acre), 19-times the average conventional insecticide price of application in 2010. Steady reductions in insecticide use in Bt-transgenic corn are also now in jeopardy as a outcome of the emergence of corn rootworm (CRW) populations resistant to the Cry 3Bb1 toxins expressed in several corn hybrids 1 , 2 To combat this ominous development, some seed and pesticide companies are recommending a return to use of corn soil insecticides as a resistance management tool.
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