EVALUATION OF MASS TRAPPING AND MATING DISRUPTION TOOLS FOR THE MANAGEMENT OF BRINJAL SHOOT AND FRUIT BORER Leucinodes orbonalis (GUENEE) (LEPIDOPTERA: CRAMBIDAE)
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Date
2018-07-30
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UNIVERSITY OF AGRICULTURAL SCIENCES RAICHUR - 584 104
Abstract
The management of brinjal shoot and fruit borer (BSFB), Leucinodes orbonalis
(Guenee), involving eco-friendly methods was studied during kharif and Rabi seasons of
2017-18 at Main Agricultural Research Station (MARS), Raichur and in Farmers‟ Fields
at Manvi in Raichur district. During the Kharif, the mass trapping tools viz., Delta, Sleeve
and water traps and mating disruption tool SPLAT (250g and 500g/acre) were evaluated
for their efficiency in moth catch and mating disruption. During Rabi season two doses of
SPLAT (250g and 500g/acre) were evaluated in large scale of about one acre in farmers
field to standardize the effective dose. Observations were recorded for moth catches, per
cent shoot damage and per cent fruit damage. The results revealed that among mass
trapping tools, water trap was found to be superior in moth catches of about 5.89 moths/
trap/ week and recorded fruit yield of 27.12 t.ha-1. But both per cent shoot damage and
fruit damage was low in SPLAT (500g/acre) applied field with higher yield of 35.73 t.ha-1
with more B: C ratio (4.47) compared to untreated control with 12.48 t.ha-1 yield and 1.82
B: C ratio. Six new insecticides were evaluated against BSFB. Among them,
chlorantraniliprole 18.5 SC, flubendiamide 39.5 SC and emamectin benzoate 5 SG (14.32
%, 15.78 % and 16.30 % fruit damage, respectively) were found superior in reducing the
fruit infestation. Fruits harvested from SPLAT applied field and farmers practice were
analysed for pesticide residue. Results indicated that fruits harvested from SPLAT applied
field did not show any pesticides and fruits collected from farmers field recorded five
pesticides. Hence SPLAT can be used as one of the important organic component in
brinjal IPM.
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