Efficiency of Cyromazine insecticide on leaf miner control on chickpea
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عنوان دوره: سومین کنگره بین المللی حشره شناسی ایران
نویسندگان
1Agricultural Entomology Dept., Iranian research Institute of Plant Protection, AREEO, Tehran, Iran,
2Plant Protection Dept., Agriculture and Natural Resource Research Center of Kermanshah, AREEO,
3Plant Protection Dept., Agriculture and Natural Resource Research Center of Lorestan, AREEO, Khoramabad, Iran,
4Plant Protection Dept., Agriculture and Natural Resource Research Kordestan, AREEO, Sanadaj, Iran,
چکیده
The leaf miner, Liriomyza sp., with several species, is one of the most important pests of a wide range of plants, including chickpea. They damage host crops in adult stage by making small cavities on plant leaf for oviposition and in the larval stage by creating spiral mines through the leaves. This study was conducted to determine the efficacy of some insecticides including Cyromazine 75% wp 600 and 800 ml/L ( 200 and 250 g/ha), Abamectin EC 1.8% 200 ml/L, Chlorpyrifos EC 40.8% (600 ml/L) and water as control on the pest. All experiments were conducted in a completely randomized block design with 4 replicates in three provinces including Kurdistan, Kermanshah and Lorestan. To obtain a uniform sampling method, in each plot, 10 leaves with equal size were randomly collected from the middle part of the plants and were placed in separate plastic bags labeled with treatment name and number of replications and transferred to the laboratory. The number of live larvae in the mines was counted using a stereomicroscope and data was analyzed by SAS software. The results showed that there was no significant difference between treatments after spraying and all used pesticides were effective compared with the control. In this way, Cyromazine (250 g/ha) and Chlorpyrifos caused 95.08 ± 2.87% and 100%, 88.17 ± 1.82% and 83.17 ± 8.83% and 100% and 100% mortality in Lorestan, Kermanshah and Kordestan, respectively, and had the highest efficiency among treatments. In addition, in terms of percentage of infested plants at the end of the season, the Cyromazine (250 g/ha) treatment in Kermanshah province and Chlorpyrifos and Cyromazine (250 g/ha) treatments in Lorestan province showed the minimum infestation compared with that of other treatments.
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