研究采用人工接种模拟小麦条锈病自然发病状况 ,再进行分期喷药 ,从而得出不同时期喷药对小麦条锈病的防治效果。在本试验条件下的结果表明 :在条锈病发病初期的小麦拔节期和孕穗期用药都能达到较好的防治效果 ,而二者相结合防治效果更佳 ,可比不防治增产 16 7 5 5 % ,并能达到较高的产投比和将对环境污染降到最低程度。另外 ,研究还表明 ,小麦条锈病的过早发生 ,对小麦产量构成因素中的有效穗、穗粒数和千粒重都会产生严重影响 ,依次为 :穗粒数 >千粒重 >有效穗 ,因此 ,对于不抗病的小麦品种 ,应对其条锈病进行全程监控 ,做到早发早治 ,再发再治较好 ,才能夺取最后丰收 The study used artificial inoculation to simulate the natural incidence of stripe rust in wheat and then sprayed it in stages to find out the control effect of spraying pesticides on wheat stripe rust in different periods. Under the conditions of this experiment, the results showed that both the jointing stage and the booting stage of wheat could achieve better control effect in the early stage of the occurrence of stripe rust, and the combination of the two could better control the yield and reduce the yield of 16 7 5 5% , And can achieve a high ratio of production and investment and environmental pollution will be minimized. In addition, the study also showed that the premature occurrence of wheat stripe rust can have a serious impact on the effective panicles, grains per spike and 1000-grain weight in the components of wheat yield, which are as follows: grain number per spike> 1000-grain weight> effective spike, therefore, Disease-resistant wheat varieties, the stripe rust should be monitored throughout the process, so early onset treatment, re-treatment is better, in order to capture the final harvest