红松人工纯林3种梢斑螟成虫种群动态分析

梢斑螟是黑龙江省红松人工林的主要果梢害虫,研究了其成虫种群动态及未来种群变化趋势,为种群预测以及防治提供科学理论依据。在梢斑螟成虫发生期6月下旬—8月初,每天夜间19:00—23:00在红松林缘利用灯光诱捕梢斑螟成虫,结合幼虫鉴定种类,分析其种群动态。1)在牡丹江林口林业局的湖水、曙光和西北楞3个地点,诱捕到的种类均为赤松梢斑螟Dioryctria sylvestrella、冷杉梢斑螟D. abietella和微红梢斑螟D. rubella。2)在湖水,梢斑螟的种群数量最多,平均每天诱捕111.38头;西北楞其次,平均每天诱捕79.625头;曙光最少,平均每天诱捕69.63头。微红梢斑螟在3个地点均是优势种。3)在整个诱捕期间,冷杉梢斑螟和赤松梢斑螟成虫期为6月上旬—7月下旬,高峰期为6月下旬;微红梢斑螟成虫期为6月上旬—8月下旬,高峰期为6月下旬和7月中旬。

The spotted shoot moths (genus *Dioryctria*) are the primary shoot and cone pests of planted Korean pine (*Pinus koraiensis*) forests in Heilongjiang Province. This study examined the adult population dynamics and projected future population trends of these pests, aiming to provide a scientific theoretical foundation for population forecasting and pest management. During the adult flight period (late June to early August), adult moths were trapped via light traps at 19:00–23:00 nightly at the edges of Korean pine stands. Population dynamics were analyzed in combination with larval species identification. 1) At three sites (Hushui, Shuguang and Xibeileng) in Linkou Forestry Bureau, Mudanjiang, the trapped moth species were confirmed as *Dioryctria sylvestrella*, *D. abietella* and *D. rubella*. 2) The highest trapped moth population was recorded at Hushui, with an average of 111.38 individuals trapped per night; followed by Xibeileng, with an average of 79.625 individuals per night; Shuguang had the lowest population, with an average of 69.63 individuals per night. *Dioryctria rubella* was the dominant species across all three sites. 3) During the entire trapping period, the adult flight periods of *D. abietella* and *D. sylvestrella* spanned from early June to late July, with a peak occurring in late June. For *D. rubella*, the adult flight period lasted from early June to late August, with peaks observed in late June and mid-July.

搜集汇总

背景与挑战

背景概述

该数据集包含红松人工纯林中赤松梢斑螟、冷杉梢斑螟和微红梢螟的种群动态研究数据，揭示了不同地点和时期的种群数量变化及优势种情况，为红松林害虫防治提供了科学依据。数据以文档形式存储，来源于国家重点研发计划项目，经过严格的质量控制。