摘要
通过对邯郸地区农作物、土地植被和害虫、天敌调查资料,选择主要部分进行分析、研究,阐述了冀南平原季候区耕作制度、自然环境变更等对害虫、天敌发生消长的影响;明确了植被、害虫、天敌是相互依存、相害相生的矛盾统一体。一旦出现植被演替加速,有利于害虫生境的形成,将会导致天敌作用的失控、虫害的猖獗。植被演替与害虫及天敌发生消长具有5种关系;伴随耕作制度变更农业害虫消长呈现4个特点。在科技高度发达和高度开放的社会,贸易的自由化带给了人们极大的物质丰富,但同时也有不良后果,例如化学农药的使用、夏播棉的推广而产生的虫害猖獗及美国白蛾的引入等。在引进或不当引入有害新物种后,一定要严格程序评估、监控,对有害物种要防除有力,切不可因疏漏和放松警惕而出现新的严重后果。
The reform and change of farming and cultivation system is formed under certain production level and historical condition. Through to the Handan area, land vegetation and crop pests and their natural enemies in survey data, selection of main part analysis, and illustrates the influences of South Hebei season cropping system, the natural environment changes on the occurrence of insect pests and natural enemies; clear vegetation, insect pests and natural enemies are the unity of opposites of interdependence and harm health. Once vegetation succession accelerates, it is beneficial to the formation of pest habitat, which will lead to the loss of natural enemies and rampant pest.Vegetation succession and occurrence of pests and natural enemies in the 5 kinds of relationships ; with the change of farming system of agricultural pests and showed 4 characteristics. In science and technology highly developed and highly open society, free trade and gives people great material wealth, but also have adverse consequences. Such as the use of chemical pes- ticides, the spread of the spread of summer cotton and insect pests rampant introduction of American white moth. In the introduction of new species after introducing harmful or inappropriate, must strictly program assessment and monitoring of harmful species, to con- trol effectively, must not be due to omissions and relax their vigilance and serious consequences of the new.
出处
《天津农业科学》
CAS
2017年第3期87-93,共7页
Tianjin Agricultural Sciences
关键词
耕作制度
植被演替
害虫
天敌
消长动态
cyopping system
vegetation replacement
pest
natural enemy
dynamics of growth and decline
