1 FAQ
Pests, Diseases & DisordersCan sunlight affect how long Bt remains active on mango foliage?
Sunlight can degrade Bt activity on exposed plant surfaces, so biological origin does not imply indefinite persistence outdoors. Weather, coverage, and larval feeding also affect what the pest encounters. Evaluate the particular labeled product rather than assigning every Bt preparation one residual life. Do not compensate for suspected loss by exceeding label rates or inventing a shorter application interval.