We selected the trap plant that could attract Ricania spp. adult effectively and the systemic chemicals that could beused at the same time in 2016. Ricania spp. has recently spread throughout Chungnam province since its occurrence in2010. We found that sunflowers could attract them effectively in pre-oviposition period of Ricania spp. and selected thesystemic chemicals could be used with sunflower simultaneously. The sunflower attracted their adults about 90 to 95percent in pre-oviposition period. The systemic chemicals was dinotefuran SG 50% and the control effect of it was 96.2%.The control effect of dinotefuran transferred to sunflower was excellent, and the density of adult in blackberry field couldbe kept low in pre-poviposion period of Ricania spp. The above results show the possibility of using sunflower as atrap plant to control Ricania spp. adults.

The changes of feeding pattern and the amount of insecticide penetrated into the leaf were monitored for 420 min after treatment of three concentrations of dinotefuran. At about 30 min after treatment of insecticide, the overall feeding pattern in EPG (Electrical Penetration Graph) monitoring was started to change, and there was significant difference in proportions of NP (non-penetration), PA (pathway activity), and phloem-feeding patterns among the different concentrations of dinotefuran treatment. Especially, as the amount of insecticide penetrated into a leaf increased, the reactive behaviors against this insecticide such as withdrawal of proboscis and movements of stylet of aphid were more quickly exhibited. And also, total time at which the proboscis of the aphids did not penetrate the plant was getting longer. The amount of dinotefuran penetrated into a leaf was monitored with HPLC. When the recommended concentration (100 ㎎/L) of the insecticide was treated, 5.24~7.24 ㎎/L of the insecticide was detected from the leaf, and the proboscis of the aphids was apparently withdrawn from the leaf at approximately 60 minutes after treatment of this insecticide.