CHEMICAL CONTROL OF DATE PALM TREE BORERS, ORYCTES SPECIES (COLEOPTERA: SCRABAIDAE: DYNASTINAE)

The efficacies of the systemic insecticide Confidor 200SL (Imidacloprid) and Actara 240SC(Thiamethoxam) has been studied chemical control to date palm tree borers, Oryctes spp. (Coleoptera: Scarabaidae: Dynastinae) in field trials using three methods: direct spray, trunk injection and drench at offseason. Field results demonstrated that the direct spray of 5 liter solution (1 ml confidor per liter water) per tree or (1ml Actara per liter water) per tree treated crown tree only unaffected on Arabian Rhinoceros Beetle, Oryctes agamemnon arabicus (ARB) larvae. While, field experiments results showed that injection of 40ml per palm tree with a concentration of standard solution (10 ml confidor per liter water) inflected about 85.8% mortality in ARB larvae compared with 100% in 10 ml per palm tree with a concentration of standard solution (5 ml Actara per 5 ml water). Meanwhile, drench of 25 liter per tree having a concentration of 25 ml of Confidor or 5 ml Actara imposed 80% and 75% mortality in larvae respectively. Results of this investigation illustrate the possibility of using Confidor 200 SL (Imidacloprid) or Actara 240 SC (Thiamethoxam) as a chemical control palm borers in I PM programs after yield collection.