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落叶松是辽宁省山地造林的主要树种之一。为了满足造林所需种子,全省先后建立了落叶松母树林8km~2(12,000亩),种子园2km~2(3,000亩)。1977年以来,由于种实害虫为害,严重影响种子的收成,甚至颗粒不收。尤其是培育良种的种子园,遭受损失尤为严重。辽宁省为害落叶松球果及种子的主要害虫有以下3种。黑胸球果花蝇 Lasiomma melaniamelaniola Fan 稀球果花蝇 L.intreq uens(Ack-land)
Larix is one of the main tree species afforestation in Liaoning Province. In order to meet the seeds needed for afforestation, the province has set up 8km ~ 2 (12,000 mu) of larch mother trees and 2km ~ 2 (3,000 mu) of seed orchards. Since 1977, due to the fact that pests of seed are harmed, the harvest of seeds is severely affected, and even the grains are not collected. In particular, the cultivation of seed orchards is particularly serious. Liaoning Province, the main damage pests cones and seeds of the following three kinds. Lasiomma melaniamelaniola Fan (Latin American Reptile) Linarensis umbellatus (Ack-land)