A laboratory study on the minimum dosage requirements for effective methyl bromide fumigation of food commodities.

Rajendran, S. and Muthu, M. (1978) A laboratory study on the minimum dosage requirements for effective methyl bromide fumigation of food commodities. International Pest Control, 20 (3). 5-9; 1 fig.; 17 ref..

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Abstract

Fumigation trials were carried out to find the minimum effective dosages of methyl bromide required for about 37 stored products at 27 plus or minus 2 deg C and 40-85% RH, with adults of Tribolium castaneum (Hbst.) and third-instar larvae of Trogoderma granarium Everts as the test insects. The fumigant concentrations were noted after 0.5, 2, 4, 7 and 24 h, concentration-time curves were drawn for each commodity and integrated CT products were determined. For treatment for a period of 24 h, the stored grain (except rice), pulses (except cowpea [Vigna unguiculata]), oilseeds, spices, rice bran and poultry feed required a minimum dosage of 16 mg/litre; milled cereals required 24-32 mg/litre; for pulse cakes products, oil cakes and fish meal, the effective range was 32-64 mg/litre. Fish meal and greengram [Vigna] splits were the most sorptive commodities tested; the CT products were 112 mg.h/litre for the former when exposed to 48 mg methyl bromide/litre and 106 mg.h/litre for the latter at 64 mg/litre. Tamarind pulp was the least sorptive commodity and required only 8 mg/litre to yield the required CT product.

Item Type:	Article
Uncontrolled Keywords:	control-; fumigants-; methyl-bromide; stored-products; cereal-grains; grain-legumes; cowpeas-; oilseeds-; spices-; rice-bran; flours-; oilseed-cakes; fish-meal; pest-control; chemical-control; agricultural-entomology; rice-; seeds-
Subjects:	600 Technology > 03 Agriculture > 05 Insect/Pest Control 600 Technology > 08 Food technology > 16 Nutritive value > 08 Grains
Divisions:	Food Protectants and Infestation Control
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	28 Dec 2016 07:58
Last Modified:	28 Dec 2016 07:58
URI:	http://ir.cftri.res.in/id/eprint/8478

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