Abstract:
The toxicity of acetamiprid 20% SL and imidacloprid 25WP on adult Dysdercus koenigii Fb. was studied. Five types of haemocytes i.e, plasmatocytes, granulocytes, prohaemocytes, oenocytoids, spherulocytes were identified as 35, 23, 18. 7.5 and 3.5% after treatment with acetamiprid, and 28.25, 24.50, 32.75, 2.25 and 1.25% after treatment with imidacloprid, respectively. After the application of acetamiprid, the total haemocyte count (THC) increased (19865 cells/mm3) soon after the application of insecticide, while decreased (11010 cells/mm3) after half an hour and increased considerably again (22855 cells/mm) after one hour of application from the normal count (17000 cells/mm3). In case of imidacloprid, THC decreased (14488 cells/mm3) soon after the application of insecticide, while it increased (16163 cells/mm3) after half an hour and increased again (21983 cells/mm3) after one hour of application from the normal count (17000 cells/mm3).
Page(s):
239-241
DOI:
DOI not available
Published:
Journal: Journal of Agriculture and Social Sciences, Volume: 1, Issue: 3, Year: 2005