摘要
2013年黏虫维持了2012年以来的重发态势。二代黏虫在东北、华北、黄淮局部、江南局部、西南地区普遍发生,多种作物受害严重,总体发生程度重于2012年同期,山西、河北等局部地区大发生。三代黏虫在东北、华北和黄淮局部等地偏重发生,虽然发生面积、发生程度整体上不如2012年严重,但是仍显著重于常年,并且在辽宁、山西、山东的局部地区造成严重危害。分析提出,监测防控及时到位、关键时期气象条件不利,是2013年三代黏虫发生程度轻于2012年的主要原因。
In 2013, the occurrence situation of armyworm [Mythimna separata （Walker）] in China was consist- ently serious as that in 2012. The 2nd generation larvae of armyworm occurred in a large scale area of Northeast and North China, Huang-Huai River Valley, south of the Yangtze River and Southwest China, causing a variety of crops damaged. The overall situation is much more serious than the same generation in 2012, for example, it caused the most serious losses in some parts of Shanxi （Taiyuan） and Hebei provinces. The 3rd generation army- worm occurred in the Northeast and North China, and some places in Huang-Huai River Valley, with a relatively smaller scale and milder degree than that in 2012. Nonetheless, the occurrence of the 3rd generation was even sig- nificantly serious than that in normal years, which could be supported by heavy losses in some places of Liaoning, Shanxi （Taiyuan）, Shandong provinces, etc. The main causes of milder occurrence of the 3rd generation in 2013, compared with 2012, were indicated as follows： the supervision and monitoring was more effective, and the weather condition was not suitable for the critical development periods of the armyworm.
出处
《植物保护》
CAS
CSCD
北大核心
2015年第3期131-137,共7页
Plant Protection
基金
公益性行业(农业)科研专项(GYHY201303026)
关键词
黏虫
发生特点
分析
Mythimna separata
occurrence characteristics
analysis
