초록
시설원예의 중요해충인 온실가루이의 국내에서의 정착가능여부를 파악하기 위해 수행된 각태별 저온처리 시험결과는 다음과 같다. 1. 난은 $-5^{\circ}C$, 3시간처리에서 부화율이 현저히 떨어졌으며 $-10^{\circ}C$, 3일간처리에서 부화능력을 완전 상실하였다. 2. 유충은 $-5^{\circ}C$, 3일간처리에서 용화율이 현저히 떨어졌으며 $-20^{\circ}C$, 3일간처리에서 용화능력을 완전상실하였다. 3. 용은 $-15^{\circ}C$, 3일간처리에서 우화율이 현저히 떨어졌으며 $-20^{\circ}C$, 3일간처리에서 우화능력을 완전상실하였다. 4. 성충은 $-7.5^{\circ}C$ 3일간처리에서 생존율이 현저히 떨어졌으며 $-10^{\circ}C$, 3일간처리에서 완전사멸하였다. 이상의 결과로 미루어보아 국내의 중남부지역에서는 용태로 월동이 가능하고 제주도 및 남해안지역에서는 각태모두 월동이 가능할 것으로 고려된다.
Results obtained from the experiment conducted to determine the potential distribution of greenhouse white flies are summerized as follows; Hatching rate of eggs were significantly decreased when eggs were treated under $-5^{\circ}C$ for three days and no eggs were hatched when 4he eggs were treated at $10^{\circ}C$. for three days. Kate of pupation was also decreased when larvae were subjected to $-5^{\circ}C$ for three days and no pupation of larvae was of served when the larvae were under $-20^{\circ}C$ for three days. Emergency rate of pupae was decreased when pupae were under $-20^{\circ}C$. for three days and no emergence was observed when pupae were treated at the temperature of $-20^{\circ}C$ for three days. Survival rate of adults were greatly decreased when they were under $-7.5^{\circ}C$. for three days and the adults were completely dead when they were subjected to $-10^{\circ}C$. for three days. Therefore, it may be concluded that the greenhouse white flies may be overwintered, in the from of pupae at the middle-southern part of Korea, while they may overwinter in all developmental stages in Jeju Island and in southern tip coast area of Korea.