Sensitivity of Meloidogyne incognita and Rotylenchulus reniformis to Abamectin

Avermectins are macrocyclic lactones produced by Streptomyces avermitilis. Abamectin is a blend of B(1a) and B(1b) avermectins that is being used as a seed treatment to control plant-parasitic nematodes on cotton and some vegetable crops. No LD(50) values, data on nematode recovery following brief e...

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Détails bibliographiques
Publié dans:Journal of nematology. - 1969. - 38(2006), 2 vom: 28. Juni, Seite 240-4
Auteur principal: Faske, T R (Auteur)
Autres auteurs: Starr, J L
Format: Article
Langue:English
Publié: 2006
Accès à la collection:Journal of nematology
Sujets:Journal Article
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245 1 0 |a Sensitivity of Meloidogyne incognita and Rotylenchulus reniformis to Abamectin 
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520 |a Avermectins are macrocyclic lactones produced by Streptomyces avermitilis. Abamectin is a blend of B(1a) and B(1b) avermectins that is being used as a seed treatment to control plant-parasitic nematodes on cotton and some vegetable crops. No LD(50) values, data on nematode recovery following brief exposure, or effects of sublethal concentrations on infectivity of the plant-parasitic nematodes Meloidogyne incognita or Rotylenchulus reniformis are available. Using an assay of nematode mobility, LD(50) values of 1.56 mug/ml and 32.9 mug/ml were calculated based on 2 hr exposure for M. incognita and R. reniformis, respectively. There was no recovery of either nematode after exposure for 1 hr. Mortality of M. incognita continued to increase following a 1 hr exposure, whereas R. reniformis mortality remained unchanged at 24 hr after the nematodes were removed from the abamectin solution. Sublethal concentrations of 1.56 to 0.39 mug/ml for M. incognita and 32.9 to 8.2 mug/ml for R. reniformis reduced infectivity of each nematode on tomato roots. The toxicity of abamectin to these nematodes was comparable to that of aldicarb 
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