ISHS Acta Horticulturae 579: II Balkan Symposium on Vegetables and Potatoes
NEW PESTICIDES FOR POTATO PROTECTION AGAINST THE COLORADO POTATO BEETLE (LEPTINOTARSA DECEMLINEATA SAY.) AND LATE BLIGHT (PHYTOPHTORA INFESTANS MONT. DE BARY) |
| Authors: | A. Zabel, S. Rajkovic, B. Manojlovic, S. Stankovic, I. Veljkovic |
| Keywords: | IGR insecticides, systemic fungicides, efficacy, Match 050, Nomolt 10, Quadris |
| Abstract:
Initial toxicity of the insecticide lufenuron (Match 050) for the control of Colorado Potato Beetle larvae was low, and the protective effect was good and long-lasting, very similar to that of teflubenzuron (Nomolt 10) in all registered characteristics. The combination of the insecticides from the group of insect growth regulators (IGR) with classical ones provided higher efficiency and longer protective period. The combinations of two classical insecticides were characterized by higher initial toxicity, and their effect lasted for a shorter period, compared to the IGR insecticides. The highest efficacy against the late blight was manifested by the fungicide Quadris (a.i. azoxistrobin). Under high infestation of the late blight all investigated fungicides manifested lower efficacy. | |
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