CAJ | 학술논문

在油杉吉松叶蜂(Gilpinia disa)虫害常发区设标准地，通过观测云南油杉(Keteleeria evelyniana)受害植株的生长情况，寄主植物食源量对幼虫发育的影响，以探索两种群之间的相关性。其结果表明：云南油杉从食源上制约着油杉吉松叶蜂幼虫的发育，当油杉吉松叶蜂4龄幼虫在食源紧缺时(寄主失叶量≥5/6)，仅有2．5％的能正常发育；当云南油杉失叶量小于1/3时，其高、径、材积呈增效生长；云南油杉具有极强的抗虫性，当它连续3年(每年失叶1次)严重受害失叶后，仍能存活，但如果1年内连续两次严重受害失叶后，植株就会死亡；云南油杉受害失叶量≥1/3时，其高、径生长量、材积生长率随着受害程度增强而减小。
재유삼길송협봉(Gilpinia disa)충해상발구설표준지，통과관측운남유삼(Keteleeria evelyniana)수해식주적생장정황，기주식물식원량대유충발육적영향，이탐색량충군지간적상관성。기결과표명：운남유삼종식원상제약착유삼길송협봉유충적발육，당유삼길송협봉4령유충재식원긴결시(기주실협량≥5/6)，부유2．5％적능정상발육；당운남유삼실협량소우1/3시，기고、경、재적정증효생장；운남유삼구유겁강적항충성，당타련속3년(매년실협1차)엄중수해실협후，잉능존활，단여과1년내련속량차엄중수해실협후，식주취회사망；운남유삼수해실협량≥1/3시，기고、경생장량、재적생장솔수착수해정도증강이감소。
Sample plots were set in areas of Gilpinia disa occurring frequently. The correlation of Keteleeria evelyniana and Gilpinia disa was studies through observing growth state of Keteleeria evelyniana and the influence of food resource amount of host on development of larva of Gilpinia disa. The results show that the development of the larva is restricted by food resource amount.When 4 age of Gilpinia disa are lack of food resource, only 2.5% of them can survive. When the leaves lose of Keteleeria evelyniana is less than one third, their height, diameter and volume will increase positively. Keteleeria evelyniana has very strong pest resistance, which can still survive even when suffering pest damage for 3 years continuously (losing leaves one time per year). However, they will die when suffering the damage and losing leaves 2 times within one year. The height, diameter growth and the rate of stem volume growth of Keteleeria evelyniana will decrease with the increase of suffering degree when the amount of losing leaves is more or equal to one third.