CAJ | 학술논문

对松纵坑切梢小蠹生物学特性、发生与为害同生态因子的关系和综合防治措施进行了系统研究,结果表明:松纵坑切梢小蠹在辽阳地区1 a1代,为害长达240 d以上.20 a生以下中幼林的被害指数几乎是35 a生以上林龄的2倍;混交林的被害指数是油松纯林的2.7倍;郁闭度0.5以下林分的被害指数是0.7以上的2.5倍;南坡、林缘的被害指数分别是北坡、林内的2.4倍和2.8倍,中上层(第四轮枝层以上)被害较重;树冠南部稍被害重于北部.采取营林措施、林间饵木诱杀、聚集信息素诱杀、根部喷施200倍绿色威雷和1.5%对硫磷粉剂、磷化铝12 g·m-3饵木熏蒸等防治措施,防治效果良好.
대송종갱절소소두생물학특성、발생여위해동생태인자적관계화종합방치조시진행료계통연구,결과표명:송종갱절소소두재료양지구1 a1대,위해장체240 d이상.20 a생이하중유림적피해지수궤호시35 a생이상림령적2배;혼교림적피해지수시유송순림적2.7배;욱폐도0.5이하림분적피해지수시0.7이상적2.5배;남파、림연적피해지수분별시북파、림내적2.4배화2.8배,중상층(제사륜지층이상)피해교중;수관남부초피해중우북부.채취영림조시、림간이목유살、취집신식소유살、근부분시200배록색위뢰화1.5%대류린분제、린화려12 g·m-3이목훈증등방치조시,방치효과량호.
A systematical study was conducted on biological characteristics of Tomicus piniperda and the relationship between the occurrence and ecological factors as well as comprehensive control measures. The results show that Tomicus piniperda has one generation per year in Liaoyang region, Liaoning Province, China, and damage period lasts more than 240 days. Infestation index of young-middle aged forest at age less than 20 years was almost 2 times that of 35-year-old forest, while the infestation index of the mixed forest was 2.7 times that of the pure forest of Pinus tabuliformis. Infestation index of forest with a crown density below 0.5 was 2.5 times more than that of the forest with a crown density of over 0.7. Infestation indices of stand on the southern slope and forest edge were 2.4 times and 2.8 times more than that of stand on northern slope and within forest, respectively. Heavy damage was observed in the middle and upper layers of a tree. Much heavier infestation was found in southern part of the crown, compared to northern part of crown. Control experiment indicates that silviculture measure, trap tree, and the aggregation pheromone all have good control result for T. piniperda. Spraying 200 folds of cypermethrin and 1.5% methyl-parathion mixed powders on root part of tree achieved 95% mortality of T.piniperda, while fumigating trap tree with aluminium phosphide at 12