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- rice diseases and pest insects 水稻病虫害
- Objective An investigation was made into Chaenomeles speciosa in the original plants for providing the science basis on comprehensive control of diseases and pest insects. 目的对宣木瓜地道产区的病虫害进行了调查研究,为综合防治病虫害提供科学借鉴。
- The main factor that affects population's uniformity is invalid plant including inbred lines,barren stalk rate,diseases and pest insects plant in populations of different yield level. 无效株是影响群体整齐度的重要因素，主要包括：自交株、空秆、小穗株及病虫害株等。
- Diseases and pest insects of sweet cherry in Ukraine 乌克兰甜樱桃的病虫害
- Controlling main diseases and pest insects of grape in courtyards 庭院葡萄主要病虫害防治技术
- Study on diseases and pest insects on jujube trees and its occurrence regularity in Northern Sha'anxi 陕北枣树病虫害及其发生趋势
- Investigations and control of major diseases and pest insects on fresh flowers in Kunming City 昆明市主要鲜切花病害发生调查及防治对策
- Major Diseases and Pest and its control in Phellodendron sp. 黄柏主要病虫害及防治技术。
- Studies on the overall investigation and forecast techniques of rice disease and pest 水稻病虫总体调查和预报技术探讨
- Experiment in the Control of Rice Disease and Pest with High-efficiency and Low Toxicity Biological Agro-chemicals 高效低毒及生物农药防治水稻主要病虫害试验
- flee diseases and pest insects 水稻病虫害
- The Main Disease and Pest Control Countermeasures of Cycas spp. 苏铁主要病虫害及其防治对策。
- Current Situation and Control Countermeasures of Eventful Rice Diseases and Pests in Shanghai Suburbs 沪郊水稻重大病虫灾害现状及未来控制对策
- THE STUDIES OF INTEGRATED CONTROL OF RICE DISEASES AND PESTS IN CHINA RESEARCH AND APPLICATION OF MULTI-FUNCTION CONTROL TECHNIQUES 江淮稻区水稻病虫害综合防治研究 多功能新技术的研究与应用
- disease and pest insects 病虫害
- Relationship between the ecological environment change in field and the occurrence growth and decline and population succession of rice diseases and pests in Jiangzhou district 江州区水稻病虫发生消长及种群演替与农田生态环境变化关系分析
- disease and pest insect 病虫害
- rice diseases and pests 水稻病虫害
- Control effects of highly effective and low-toxic pesticide, biological pesticide on major rice disease and pests 高效低毒及生物农药防治水稻主要病虫的药效
- A forest operator shall use fine species, construct mixed forests, carry out scientific forestation and improve the ability to prevent forest diseases and pest damages. 省、自治区、直辖市行政区域内的重点防护林和特种用途林的面积，不得少于本行政区域森林总面积的百分之三十。
