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文章分析了西藏主要作物病虫草害发生动态,探讨了自然及人为的因子同其发生发展的关系。对其5—10年内发展趋势进行了分析,认为:(一)青棵条纹,条锈,坚、散黑穗仍为青棵主要病害,但不会发生大的流行;小麦腥黑穗,小麦条锈将可能大流行;根病有增加趋势。历史上曾猖獗的小麦白秆病,麦类黄条花叶病不会急剧回升。蛴螬、地老虎、蚜虫稳定在较重发生;麦穗夜蛾、秀夜蛾、蓟马、蜘蛛、瘿螨在局部地区有大发生的可能;根蚧类为害增加。野燕麦、灰灰菜仍为麦作主要杂草,部分农区雀麦、蓼、蒿等杂草也应引起注意。
The paper analyzes the occurrence of pests, diseases and weeds in Tibet and explores the relationship between natural and man-made factors and its occurrence and development. The development trend of its 5-10 years is analyzed, it is considered that: (I) the green stripes, stripe rust, strong and scattered black spikes are still the major diseases of the green tree, but the pandemic will not occur; Stripe rust will likely pandemic; root disease has an increasing trend. Historically rampant wheat white stalk disease, yellow wheat mosaic disease will not be a sharp rise. Scabies, terrestrial tiger, aphids stable occurred in the heavier; Spodoptera litura, Spodoptera litura, thrips, spiders, scabies mites in large areas may occur in large areas; Wild oats, gray grapes are still wheat as the main weeds, some agricultural landbrick, Polygonum, Artemisia and other weeds should also pay attention.