TY - JOUR
T1 - Effects of Some Tropical Plant Extracts, Trichoderma harzianum and Captan on the
Damping-off Disease of Tomato Induced by Sclerotium rolfsii
AU - , Okereke V.C AU - , R.C. Wokocha
JO - Agricultural Journal
VL - 1
IS - 2
SP - 52
EP - 54
PY - 2006
DA - 2001/08/19
SN - 1816-9155
DO - aj.2006.52.54
UR - https://makhillpublications.co/view-article.php?doi=aj.2006.52.54
KW - Sclerotium rolfsii
KW -tropical plant
KW -tomato
KW -Trichoderma harzianum
AB - Aqueous extracts of ginger, neem seed, bitter cola and leaves of Hyptis suaveolens as well as captan
and Trichoderma harzianum were evaluated in the greenhouse for their efficacy as soil drenches in the
reduction of the damping-off disease of tomato incited by S. rolfsii. The experiment was laid out in a 6x3
factorial in a completely randomized design replicated five times. The results showed that soil drenching two
days before inoculation with S. rolfsii gave disease reduction values which were similar in the treatments:
T. Harzianum (67.1%), neem seed (62.4%), H. suaveolens (60.8%), captan (60.4%), bitter cola (60.1%) and ginger (57.4%). When soil drenches were applied on the same day as the inoculation, T. harzianum, captan and
extracts of neem seed, H. suaveloens leaves and ginger significantly differed (p<0.05) from the bitter cola extract
and the disease reduction values ranged from 40-60%. At two days after inoculation, neem seed extract, captan
and T. harzianum significantly (p<0.05) reduced the disease giving disease reduction values of 53.3, 57.5 and
64.7%, respectively. Generally, the plant extracts showed selective fungi toxicity and were not phytotoxic to the
tomato seeds.
ER -