UJI DAYA HAMBAT JAMUR ANTAGONIS Trichoderma spp DALAM FORMULASI KERING BERBENTUK TABLET TERHADAP LUAS BERCAK Phytophthora palmivora PADA BUAH KAKAO

Abstract

The research was carried out at the Laboratory of Plant Disease, Faculty of Agriculture, Tadulako University.  A various number of Trichoderma spp tablets was diluted into 10 ml of sterilized water in accordance with the treatment dosages, namely 1, 2, 3, 4, 5, 6 and 7 tablets to form suspension. Each Trichoderma spp suspension mixed with P. palmivora suspension (3 ml) were invested into 30 g of soil, then incubated for 0, 3, 6, 9, 12 and 15 days.  As much as 5 g of the soil was inserted into a hole made on cacao and incubated for 3, 6, 9, 12, 15 dan 18 days in a series.  Then the size of spotted area on cacao was observed in accordance with the day of incubation period. The research result indicated that the treatment of 4 tablet Trichoderma spp has the largest inhibiting power (99,99%), but it was not significantly different with the treatments of 5, 6 and 7 tablets.