["Sukhanova, A. A","Boyandin, A. N","Ertiletskaya, N. L","Churakov, A. A"]2024-12-01期刊论文
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Potato cyst nematodes (PCNs) pose a great challenge for potato cultivation throughout the world. Being a rather difficult parasite due to a number of its physiological features, specifically a long-term viability of the eggs, PCN causes drastic damage to worldwide agriculture. Development of long-acting preparations deposited with nematicidal ingredients could be a novel prospective approach to PCNs management. In this study, composite granules based on polycaprolactone and montmorillonite (PCL/MMT) (100:0; 90:10; 75:25; 50:50) were studied as carriers for oxamyl nematicide. It was shown that the obtained granules are able to postpone the hydrolysis of oxamyl from 17 to 27 days and facilitate its gradual release. The maximum release of oxamyl in water was noted for PCL/MMT 50% granules and amounted to 70.3 mu g/ml on day 14. Meanwhile, oxamyl release in soil had relatively the same trend for all the granules with the most release in the first 20 days. Kinetic models demonstrated that for all PCL/MMT granules the release was due to diffusion mechanism. The nematicidal effect of PCL/MMT 50% granules with oxamyl against G. rostochiensis has been demonstrated on potato variety Krasnoyarskiy ranniy.
