... S cht T l (con) (%) 63 /20 0 31,5 85 /20 0 42, 5 75 /20 0 37,5 79 /20 0 39,5 109 /20 100 /20 127 /20 119 /20 0 140 /20 131 /20 0 48/150 34,5 32 71/150 41 47,33 53/150 35,33 69/150 46 128 /15 143/150 95,33 147/150 ... Cõy Neem 21 1.4.3 .2 Hot cht Azadirachtin 24 CHNG 2: I TNG, THI GIAN, A IM V PHNG PHP NGHIấN CU 2. 1 i tng nghiờn cu 26 2. 2 Thi gian, a im nghiờn cu 26 2. 3 Phng phỏp nghiờn cu 27 2. 3.1 ... 40 50 60 100 13 24 29 31 36 46 46 20 0 0 0 0 alphacypermethrin 30mg/m2 100 13 31 51 70 88 95 82 82 i chng 20 100 20 100 0 0 0 0 28 13 54 17 69 40 86 54 92 59 85 59 85 DDT 4% 20 100 0 0 0 0 0...