枣树龟蜡蚧Ceroplastes japonicusGreen是红枣、柿等果树较难防治的一种主要害虫。在不少枣林中,常由于用药频繁和不当,大量杀死了蚧虫天敌,导致蚧虫再增猖獗。反之,有些地方施药适当,甚至不用 Jujube turtle Ceroplastes japonicusGreen jujube, persimmon and other fruit trees more difficult to control a major pest. In many jujube forests, often due to frequent and improper medication, a large number of killed scale insect natural enemies, resulting in scale insects and then rampant. Conversely, in some places the drug is appropriate or not