and Integrated Pest Management - part - usaid

72 PI.ES'IICIDI- MANAG:MI:N'I' AND HPM IN SOUtI [IEAST ASIA
Table 5. Efficacy of carbosulfan 25 ST and carbofuran 3G to seedlingfly. Wet
season, 1981/1982.
Dosage Average illcrs/hillb seedlingfly infestationb
conccn- %
Insecticides tration 10dap 20dap 30dap 10dap 20dap 30dap
Carbosulfan 0.25% 2.79 a 4.66 a 11.72 a 1.31 bc 3.04 c 4.32 c
25 ST
Carbosnlfan 0.50% 2.66 a 4.98 a 13.32 a 0.61 c 0.82 d 0.80 d
25 ST
Carbosulfan 1.00% 2.80 a 4.93 a 13.35 a 0.11 d 0.11 d 0.41 d
25 ST
Carbofuran 3G 0.50a 2.60 a 3.93 a 10.97 a 3.27 b 12.58 b 9.82 b
Carbofuran 3G 1.00a 2.52 a 3.91 a 11.06 a 1.04 bc 8.09 bc 5.29 bc
Carbofuran 3G 2.00a 2.47 a 4.44 a 15.13 a 0.14 c 1.11 d 1.36 d
Control 2.07 a 2.47 b 6.61 b 8.87 a 23.77 a 15.94 a
a = kg a.i/ha. bdap = days after planting. In a column, means followed by the
same letter are not significantly different at the 5% level using Duncan's
Multiple Range Test.
LITERATURE CITED
Anonymous. 1986. Laporan pertemuan penamaan biotipe Wereng Coklat.
Bogor, 4 Februari 1987 (Internal report).
Oiake, A. 1977. Natural enemies of the BPH in the "Rice brown planthopper
compiled by Food and Fertilizer. Techn. Cent. Asia and Pacific Region.
Taipei, Taiwan, pp. 42-57.
Soekarna, D. 1981. Pengujian efikasi Furadan 30 ST sebagai perawatan benih
terhadap lalat bibit, Atherigona exigua. (mimeo.)
Soekarna, D. 1984. Beberapa Predator Wereng Coklat dan kemampuan
memangsanya. Pemberitaan Penelitian Puslitbangtan, Nombor 3, 1984.