Journal of Nematology (2003) 35, 110-114

B. Chinnasri, B.S. Sipes and D.P. Schmitt (2003)
Effects of acibenzolar-s-methyl application to Rotylenchulus reniformis and Meloidogyne javanica
Journal of Nematology 35 (1), 110-114
Abstract: Effects of acibenzolar-s-methyl, an inducer of systemic acquired resistance in plants, on Rotylenchulus reniformis and Meloidogyne javanica in vitro and in vivo were determined. A single foliar application of acibenzolar at 50 mg/liter (5 ml of solution per plant) to 7-day-old cowpea or soybean seedlings decreased R: reniformis and M. javanica egg production by 50% 30 days after inoculation. The mechanism of acibenzolar on plant-parasitic nematodes was then investigated. Acibenzolar at 50 to 200 mg/liter did not affect movement of R. reniformis and M. javanica or penetration of second-stage juveniles (J2) of M. javanica on cowpea. However, M. javanica development was slowed and fecundity was reduced in plants treated with acibenzolar. On average, 50% of J2 that penetrated acibenzolar-treated cowpeas developed into mature females with eggs, whereas the other 50% exhibited arrested development. The number of eggs per egg mass was 450 in water-treated cowpeas, whereas the number declined to 250 in acibenzolar-treated plants. Acibenzolar may be responsible for stimulating the plants to express some resistance to the nematodes.
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Database assignments for author(s): Buncha Chinnasri, Brent S. Sipes

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Meloidogyne javanica	Soybean (Glycine max)
	Meloidogyne javanica	Cowpea and relatives (Vigna)
	Rotylenchulus reniformis	Soybean (Glycine max)
	Rotylenchulus reniformis	Cowpea and relatives (Vigna)