前言马尾松生长快、适应性强、分布广,是我省主要用材树种,群众集爱栽培,除少数地区外,大部份地区均以马尾松为主要造林树种。建国以来,在毛主席革命路线指引下,在各级党委领导下,我省广大贫下中农和林业职工,积极响应毛主席“绿化祖国”的伟大号召,林业生产取得了很大成绩,有林面积比解放前增加二点七倍,其中马尾松林面积就占全省用材林面积的39.8％。但据近年来初步调查,我省马尾松林区(包括云南松林与华山松林)均不同程度地受到松球果小卷蛾的为害,并有扩展蔓延之势,有的林区甚至全林受害,普遍倒 Foreword Pinus massoniana grow fast, adaptable, widely distributed, is the main timber species in our province, the masses love cultivation, with the exception of a few areas, the majority of areas are Pinus massoniana afforestation species. Since the founding of the People’s Republic of China, under the guidance of Chairman Mao’s revolutionary line and under the leadership of the party committees at all levels, the vast majority of the poor and middle peasants and forestry workers in our province responded positively to Chairman Mao’s “greening the motherland” and made great achievements in forestry production. The forest area An increase of 2.7 times over that before liberation, in which Pinus massoniana forest area accounted for 39.8% of the total timber area in the province. However, according to the preliminary investigation in recent years, the masson pine forests in Yunnan Province (including Pinus yunnanensis and Pinus armandii forests) are all affected to varying degrees by the pine cone moth, and have the potential to expand and spread. Some forests and even the entire forest have been harmed, Generally down