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...
| Publié dans: | Journal of nematology. - 1969. - 38(2006), 2 vom: 28. Juni, Seite 240-4 |
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| Autres auteurs: | |
| Format: | Article |
| Langue: | English |
| Publié: |
2006
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| Accès à la collection: | Journal of nematology |
| Sujets: | Journal Article |
| Résumé: | 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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| Description: | Date Completed 25.09.2012 Date Revised 16.03.2024 published: Print Citation Status PubMed-not-MEDLINE |
| ISSN: | 0022-300X |