author(s)
Dr. Srikumar Koda Kkadan, Betty Andriany Sirait, Rianza Asfa, Dr. Wagner de Souza Tavares, Marthin Tarigan, Dr. Alvaro Duran, Dr. Ching Yong Wong and Dr. Mukesh Sharma

abstract
Feeding by the Spodoptera exigua (Hübner, 1818) (Lepidoptera: Noctuidae) and Scirtothrips sp. (Thysanoptera: Thripidae) cause damage to Acacia crassicarpa A. Cunn. ex Benth. (Fabaceae) plants and these pests are key factors affecting the production in nurseries. Leafroller, Strepsicrates semicanella (Walker, 1866) (Lepidoptera: Tortricidae) cause severe damage to young Eucalyptus spp. (Myrtaceae) plantations. Use of low-hazard insecticide with the conservation of populations of natural enemies integrates effective management. Nursery and field experiments were conducted in 2018-2019 to evaluate the low-hazard insecticide, spinetoram for control of lepidopteran and thrips. Insecticides were applied in combination with surfactant. A spinetoram-based solution (0.12%) was exceedingly effective for the control of S. exigua and thrips in nursery. Effectiveness of spinetoram-based solution (0.12%) was 100% to S. exigua and 95% to Scirtothrips sp. at 15 days after treatment (DAT). Severity of Scirtothrips sp. was 5.3% in the spinetoram (0.12%) treatment while it was 80% in standard check chlorpyrifos (0.4%) and 96% in untreated control at 15 DAT. Spinetoram at 12 g a.i./ha was significantly effective than standard check imidacloprid at 20 g a.i./ha against S. semicanella in Eucalyptus spp. plantation reducing severity from 58 to 2.8% at 30 DAT. Spinetoram at five, seven and 10 g a.i./ha was on par (P≤ 0.05%) at 10 DAT compared to 2 g a.i./ha and untreated control against S. semicanella. Spinetoram has broad insecticidal spectrum activity and reliable indices for integrated pest management strategies against major pests of A. crassicarpa and Eucalyptus spp.