Open AccessPENGARUH PENYUNGKUPAN DAN PENGGUNAAN INSEKTISIDA TERHADAP POPULASI KUMBANG DAUN DAN KERUSAKAN PADA TANAMAN SAWI
Author(s) -
Mirra Octavianty,
Imas Vita Mulisa Murni,
F.X. Susilo
Publication year - 2012
Publication title -
jurnal hama dan penyakit tumbuhan tropika
Language(s) - English
Resource type - Journals
eISSN - 2461-0399
pISSN - 1411-7525
DOI - 10.23960/j.hptt.212138-145
Subject(s) - biology , leaf beetle , horticulture , abundance (ecology) , pest analysis , toxicology , botany , larva , ecology
This study was aimed to test the efficacy of plant caging and insecticide treatment on the leaf beetle abundance and leaf beetle-induced damage on mustard plants. The field experiment consisted of three treatments (caging, insecticide and control) that were set in a completely randomized design with six replicates. Bamboo-framed screen cloth was used as cage while alfametrin was applied at recommended rate. The response variables were leaf beetle abundance (observed using a direct count method) and damage on mustard plants (percentage of severity and incidence). Result showed that plant caging effectively reduced pest abundance, damage severity (43%) and damage incidence (83%). Alfametrin spray slightly reduced leaf beetle abundance, damage severity (12%) and damage incidence (5%). Leaf beetle abundance positively correlated with damage severity (R2 = 0.714). Addition of one leaf beetle individual increased damage severity of 5%