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Laboratory evaluation of natural embelin as a grain protectant against some insect pests of wheat in storage

Chander, H. and Ahmed, S. M. (1987) Laboratory evaluation of natural embelin as a grain protectant against some insect pests of wheat in storage. Journal of Stored Products Research, 23 (1). pp. 41-46.

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Abstract

Three alpha-amylases (E.C. 3.2.1.1) were purified to apparent homogeneity from 72 h finger millet malt by three step purification via fractional acetone precipitation, Embelin (2,5-dihydroxy-3-undecyl-p-benzoquinone) was extracted from Embelia ribes berries, purified and tested as a grain protectant on stored wheat. 0.0125% embelin was effective against larvae of Corcyra cephalonica and Ephestia cautella for 8 months, and 0.05 and 0.1% gave good protection against Trogoderma granarium. 0.025% concn. gave 50% adult mortality with Rhyzopertha dominica and significantly reduced productivity (progeny/21 adult-days), and 50% adult mortality with Sitophilus oryzae, but in this case productivity was not significantly different from controls; there was no contact toxicity to adults of these 2 spp. Treatment did not adversely affect wheat germination. Overall effectiveness of embelin against the 3 beetle and 2 moth pests studied was C. cephalonica greater than E. cautella greater than R. dominica greater than T. granarium greater than S. oryzae. [From En summ.]

Item Type: Article
Uncontrolled Keywords: PESTS-; wheat, insects embelin control in stored; STORAGE-; PESTICIDES-; wheat, pesticides natural in stored; WHEAT-; insects embelin control in stored wheat; pesticides natural in stored wheat
Subjects: 600 Technology > 08 Food technology > 21 Cereals
600 Technology > 03 Agriculture > 05 Insect/Pest Control
Divisions: Food Protectants and Infestation Control
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 23 Jul 2008 06:05
Last Modified: 30 Apr 2012 10:55
URI: http://ir.cftri.com/id/eprint/2084

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