The Black pine bast scale, Matsucoccus thunbergianae is one of the most serious in black pine, Pinus thunbergii forests in Korea. Since this pest was first reported in Goheung, Korea in 1963, which is gradually spread into neighboring regions and now occurs in many regions of the southern and eastern part of the Korean peninsula. The monitoring for distribution of M. thunbergianae was able to observed by naked eye egg sacs and pupa of male on the host until now. Therefore, this monitoring was very difficult in the low density of M. thubergianae. This experiment was conducted to use simple and practical moving cross-shaped flat trap for monitoring of M. thunbergianae. The monitoring of M. thunbergianae using the device was carried out to southern regions of the Korean peninsula. The first emergence of male showed mid. March in Namhae and late march in Busan, Jinju and Pohang. The peak of emergence showed late March in Namhae and early April in the other regions. When the number of M. thunbergianae intermediate nymph showed 58~59, 11~44 and 8~25 on 39.25 ㎠ bark area of the black pine, Pinus thubergii for 1 week, the number of captured its male adult was 58~83, 67~488 and 1~55 on the moving cross-shaped flat trap (10× 13㎝), respectively. The low density of M. thunbergianae was some few the number of capture, but there were no significant difference in its high density. Also, the number of captured its male adult was no significant in the different color (yellow, red, white and blue) of the moving cross-shaped flat trap.

Pine wilt disease, caused by pine wood nematode, Bursaphelenchus xylophilus (Steiner et Buhrer) Nickle, has become the most serious threat to pine trees in Korea since first reported in 1988. Pine wood nematode is transferred to uninfested trees by Monochamus alternatus (Coleoptera: Cerambycidae) (vector). A typical controlling method against vectors in Korea is fumigation of the dead trees infested by vector M.alternatus and B.xylophilus using metam-sodium SL(25%). However, this method is harmful to the environment because of the chemical contamination and vinyl waste in the mountain afterward. Portable Bark Remover (PBR) was contrived to reduce these environmental problems. The vectors oviposite under the bark of the freshly dead trees only. Debark infested trees prohibited the vectors from oviposite and finally, vectors can not complete their life cycle. The PBR is a newly designed as a debarking device that is equipped on top of the chain saw engine allowing ease and rapid debarking of the infested trees at the controlling field. Debarking of freshly-dead trees can eliminate egg-laying and hatch places where between the wood and bark from vectors. The new method for vector controlling using the debarking device is expected to lower-price and high-efficiency comparing with other conventional methods such as “crushing”, “burning” and “fumigation”.

Trunk injection of nematicides was applied to prevent pine wilt disease (PWD). Although the trunk injection of nematicides was effective to PWD prevention, it was not effective to a vector, Monochamus alternatus. Thus, This study was investigated for the insecticidal activity and the effect of oviposition deterrence by injecting to pine trees with systemic insecticides such as Acetamiprid SC 10%, Imidacloprid DC (20%), and Thiamethoxam DC (15%). As a results, mortality of M. alternatus adults was 100% at 56 days after trunk injection. Percentage of M. alternatus adults moved to a young black pine tree by trunk injection of Imidacloprid DC (20%) and Thiamethoxam DC (15%) in screen cage (4.0×2.0×2.5m) was 76.7% and 70.0%, respectively. But the mortality of M. alternatus adults showed 100%. Percentage of M. alternatus adults moved to the treated and untreated young black pine trees by trunk injection of Acetamiprid SC (10%) in screen cage (4.0×2.0×2.5m) were 25.9% and 49.5% at 1st day and 3rd day after treatment, respectively. Percentage of M. alternatus adults oviposited to treated pine logs at 3month after trunk injection of liquid mixture of Acetamiprid SC (10%) and Emamectin benzoate EC (2.15%) in screen cage (72×72×100㎝) was 25%. But, untreated pine logs was 100%

The the peach pyralid moth, Dichocrocis punctiferalis causes the most serious damage to chestnut in Korea. This study was conducted to compare the efficiency of control with aerial spraying(AS350-B2 Helicopter, 15m/flight altitude, Nozzleorifice D6, Fenitrothion EC 50% 1ℓ/ha), sex pheromone trap(25 Wing traps/ha, 75:25 mixture of (E)-10-hexadecenyl aldehyde (E10-16:Al) and (Z)-10-hexadecenyl aldehyde, 1㎎/trap), and crown spraying(BF530, Fenitrothion EC 50% 1ℓ/ha) against D. punctiferalis at chestnut orchards. After chestnut harvest in Autumn, the damaged rate(%) by D. punctiferalis showed 29.6±1.7 in aerial spraying, 27.8±8.4 in sex pheromone trap, and 8.9±3.8 in crown spraying, respectively. The crown spraying showed the highest control effect among the 3 control methods. The other methods were similarly effective.