格木Erythrophleum fordii Oliv.是我国热带南亚热带地区一个重要的珍贵用材树种,蛀梢害虫的严重为害长期制约着其人工林的健康发展。基于对格木蛀梢害虫种类的鉴定,以及若干造林模式的虫害调查,初步总结了格木蛀梢害虫的发生规律。格木蛀梢害虫为荔枝异形小卷蛾Cryptophlebia ombrodelta L.,主要为害格木未完全木质化的嫩梢,严重影响其干形和长势。从广东格木种源家系试验林虫害发生的时空格局分析,荔枝异型小卷蛾繁殖快,在纯林中扩散迅速,而且所有种源、家系均受害,因此格木不宜营造大片纯林。格木与桉树以及米老排、红锥等速生树种同龄或异龄混交模式中,格木处于林冠下,其受害率明显下降,说明与速生树种混交能够控制荔枝异型小卷蛾的发生与为害;而与生长速度接近的马尾松混交,因二者处于同一林冠层,对虫害控制效果差;这种差异可能与荔枝异型小卷蛾不适应荫蔽环境有关。研究首次明确了格木蛀梢害虫种类,初步摸清其发生规律,并提出了适宜的造林模式,为格木人工林的健康发展提供了科技支撑。 Erythrophleum fordii Oliv. Is an important precious timber species in the tropical subtropical region of China. The serious damage to the borer pests has long restricted the healthy development of its plantation. Based on the identification of the species of woody moth and the pest investigation of some afforestation models, the occurrence rules of moth-eared pests were summarized. The woody moth pests are Cryptophlebia ombrodelta L., which mainly injure the incompletely lignified shoots of the mounds and seriously affect the dryness and growth of the moths. From the spatial and temporal patterns of pests in the germplasm resources of Gu | germplasm in Guangdong, the litchi larvae propagated rapidly and spread rapidly in the pure forest, and all the provenances and families were harmed. Gerbil and eucalyptus as well as rice veggie row, red cone and other fast-growing tree species of the same age or different age mixed mode, under the canopy wood lattice, its victimization rate decreased significantly, indicating that mixed with fast-growing tree species can control litchi Shaped moth occurrence and damage ; And mixed with mass growth of Pinus massoniana, due to the two in the same canopy, the pest control effect is poor; this difference may Litchi Shallot not adapt shade environment. The research identified the species of moth-eared pests for the first time, initially found out its occurrence law, and put forward the suitable afforestation mode, which provided the scientific and technological support for the healthy development of the mongolica plantation.