UJI KOMPATIBILITAS KONSENTRASI SUSPENSI TEPUNG DAUN SIRIH HUTAN (Piper aduncum) DENGAN Trichoderma harzianum Rifai UNTUK MENGENDALIKAN PENYAKIT BUSUK BUAH KAKAO
Abstract: Fruit rot
diseaseasof cocoa is caused by the infection of Phytopthora palmivora. The
diseas can cause a 50% reduction of cocoa yield. Control method that can be
used is to combine a the botanical fungicide with antagonistic microbes which
can be applied in disease control. The purpose of this study is to determine
the compatibility of some concentrations of Betel leaves flour suspension with
Tricoderma harzianum and to obtain the best combination to control diseases in
cocoa fruits.Theexperimenthas been conducted experimentally using a Completely
Randomized Design consisting of 5 treatments and 4 replications. The treatments
were the concentration of suspension of betel leaves flour suspension with T.
harzianum (0 g/l water + T. harzianum, 25 g/l water + T. harzianum, 50 g/l
water +T. harzianum, 75 and 100 g/l water + T. harzianum).The data analyzed
statistically with the analysis of variance and continuoudHonesty Significant
Different (HSD) test at 5% level. The results indicated that the treatment of
some suspension concentrations of betel leaves flour with T. harzianum is incompatible
in controlling the P. palmivora fungus. Concentrations of suspension betel
leaves flour of 100 g/lwater withT. harzianum showed the best ability to
inhibit the growth of P. palmivora fungus on PDA medium, decrease the initial
symptoms appereance of Cocoa fruit rot disease, and decrease the intensity of
cocoa fruit rot disease by 33,87%.
Penulis: Alpinsyah AD Ritonga,
Muhammad Ali, Yunel Venita
Kode Jurnal: jppertaniandd170226
