Friday, September 15, 2006
The toxicity experiment was conducted to know thelevels of resistance or susceptibility to different
insecticides at different concentrations on defenders.
Known number of predators were released into different
polythene jars and sprayed with Monocrotophos 1.6 ml/lit of water,
Endosulfan 2 ml/lit,Carbendazim 1 g/lit and
Azadarichtin 1500 ppm 5ml/lit and observed the
toxicity of spray solutions at different intervals viz.
5 min,10 min 15 min and 20 min and inferred that
all types of predators like carabid,spiders,gryllid,
dragon flies,damsel flies and water striders are
highly susceptible to monocrotophos
( 100% mortality observed within
10 minutes) and survived upto 15 minutes in the
case of Endosulfan as it is Eco friendly and broad
spectrum.Defenders sprayed with fungicide and
neem are safe even after 24 hours.
# posted by Maharajan,Karem @ 9:17 PM 
