桃园应慎用甲胺磷１９９１年，卢龙县卢大岭村一些果农于５月中旬使用５０％甲胺磷乳油８００—１５００倍液喷雾防治桃蚜，桃品种为大久保。喷药后当天，桃树叶片有萎蔫下垂现象，次日叶片失绿变黄、焦边，并出现落叶。之后３—ｓｄ（天）除新梢顶部一些嫩叶未脱落外，其... Taoyuan should be careful with methamidophos In 1991, some farmers in Lulingling Lulong County in mid-May using 50% methamidophos 800-1500 times spray control peach aphid, peach varieties Okubo. On the day after spraying, peach leaves wilted and drooped, the leaves of the next day turned green, yellowish, scorched, and fallen leaves appeared. After 3-sd (days) in addition to the top of the shoot some young leaves did not fall off, its ...