Phytoparasitica (2003) 31 (3) - Activity of Novaluron on the ...

M. Kostyukovsky, A. Trostanetsky, Y. Carmi, H. Frandji and R. Schneider (2003)
Activity of Novaluron on the major stored-product insect pests
Phytoparasitica 31 (3)
Abstracts 20th Conference of the Entomological Society of Israel, Feb. 11-12, 2003
Abstract: The serious health and ecological disadvantages of current fumigants and protectants are reasons to seek safe and environmentally friendly alternatives. One of the promising ways to achieve this aim is by the use of Insect Growth Regulators (IGRs). Novaluron is a novel chitin-synthesis inhibitor from the benzoyl phenyl-ureas group of IGRs with broad-spectrum activity on various insects but very low toxicity to mammals (LD₅₀ > 5000 mg kg^-1). The objective of this study was to evaluate the efficacy of novaluron on the main stored-product insect pests as a possible alternative to standard pesticides for stored-pest control. The test insects were Sitophilus oryzae, Rhizopertha dominica, Tribolium castaneum, Trogoderma granarium and Plodia interpunctella. Concentrations ranging from 0.1 ppm to 100 ppm of novaluron were mixed with whole wheat grain or with wheat flour. The results showed that, in spite of IGRs from juvenoid and ecdysteroid groups - which are ineffective on the internal pests - novaluron at a concentration of 1.0 ppm reduced the number of new generation adults of internal pests S. oryzae and R. dominica by 95% compared with the control. The phenomenon may be explained by the influence of novaluron on the reproductive system of the internal insects. At this concentration novaluron also completely prevented the emergence of adults of P. interpunctella and caused 100% mortality of T. castaneum and T. granarium 3rd-instar larvae. Novaluron did not affect the number of eggs laid by T. castaneum, but did significantly affect the hatchability of the eggs.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Moshe Kostyukovsky

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tribolium castaneum
	Plodia interpunctella
	Sitophilus oryzae
	Rhyzopertha dominica
	Trogoderma granarium