کاربرد حشره‌کش‌ها به روش تزریق در کنترل سرخرطومی حنایی خرما Rhynchophorus ferrugineus Oliv. در جنوب کرمان

Red palm weevil Rhynchophorus ferrugineus is one of the most important palm pests in the world. In the present study, the efficiency of insecticides by injection method in controlling this pest was evaluated.The factorial experiment was conducted in the form of a randomized complete block design with 6 treatments in 3 replications in South of Kerman. Factor A included two insecticides (Spirotetramat (Movento®) and Thiamethoxam (Memory®) with 100 ml in 100 ml of water concentration and control without insecticide injection and Factor B: two injection location 20 cm below the entrance hole of the larvae and 20 cm above the entrance hole of the larvae. Insecticides were used by injection method in March on the palm trees. The effect of experimental treatments was evaluated one month after injection. The results showed that the type of insecticide and injection location had a significant effect on the larval mortality, but the interaction between two factors was not significant. Spirotetramat with 49.38% mortality in the South of Kerman was more effective than thiamethoxam with 17.05%. The injection location below the larval hole with an average of 37.2% mortality was more efficient than above the entrance hole of the larvae (29.22%). The results of the interaction of the treatment (insecticide) at the injection location on the mortality rate of the pest larvae determined spirotetramat injection in the location below the entrance of larvae was more effective with 54.83% mortality compared to other treatments. Overall, this study showed that the use of insecticides by injection method along with other control methods in the form of integrated management can reduce the spread and damage of this pest.