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近几年来由于植物保护工作的迅速发展,群众迫切要求简便有效的治虫器械,特别在棉区由于六六六粉的大量推广,群众对喷粉器械更为需要,并有不少创造。其中如小钢炮、手压喷粉器、撒粉袋等都曾在不少地区推广使用,对防治棉虫起了很大作用。1954年全国棉产会议评选后,一致认为较好的小型喷粉器有两种,又经我们改良、制成样品分发各地参考。兹将其构造
In recent years due to the rapid development of plant protection work, the masses urgently require simple and effective pest control equipment, especially in the cotton area due to the large promotion of 666 powder. The masses are more in need of powder spraying equipment and have a lot to create. Among them, such as small steel cannons, hand-pressure duster, dust bag, etc. have been in many areas to promote the use of cotton insects on the prevention and control played a significant role. After the selection of the National Cotton Production Conference in 1954, it was agreed that there are two types of small duster that are better, and after that, we improved and made samples distributed around the world for reference. It will be constructed