论文部分内容阅读
目前一些地方抗虫棉的抗虫性正在逐渐减弱,病虫害发生的程度也在加重。农业专家建议政府对抗虫棉品种采取一定的保护措施。
At present, the insect resistance of insect-resistant cotton in some areas is gradually weakened, and the incidence of pests and diseases also worsens. Agricultural experts advise the government to take some protective measures against insect-resistant cotton varieties.