Awestern flower thrips
scientists at swansea university have done research into pest control using bacteria which
naturally live only in the thrips. the bacteria affect a gene which controls eating in the thrips. the
thrips stops feeding and dies. the bacteria pass naturally between the thrips.
(a)
use the information above to suggest one advantage to the farmer of using this new
method of pest control over the use of chemical pesticides.
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(b)
apart from the use of pesticides state one other method farmers use to increase crop
yields
[1]