|
|
|
| Initial Report about Studies on ULV Spray Application of Lignite Extract for the Control of Aphis gossypii Glover |
| XU Chang-qing1，WEI Jian-jian2，CHEN Jun1* |
| 1Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences,Beijing 100193,China;2Beijing TEPEC Technology Corporation,Beijing 100086,China |
|
|
|
|
Abstract Experiments were carried out for controlling Aphis gossypii Glover of cucumber with lignite extract in greenhouse.The results show that lignite extract with dosage of 10.5-21.0 L·hm-2 which sprayed with high power electrostatic spray system every 6-8 days can significantly reduce the quantity of Aphis gossypii Glover.Lignite extract with dosage of 21.0 L·hm-2 can make the quantity of Aphis gossypii Glover maintain extremely low lever in cucumber growth period.
|
|
Received: 08 September 2008
|
|
|
|
|
|
|
|
|
