|
|
|
| Occurrence and Damage of the Leaf Miners in Solar Greenhouses in Daqing |
| Jin Hui; Wang Shixi; Long Lixin; et al. |
| Daqing Agricultural Techniques Extension Centre; Heilongjiang 163411 |
|
|
|
|
Abstract An investigation of leaf miners s occurrence and damage in solar greenhouses in Daqing were made. The results showed that leaf miners could occur in the greenhouses from March to November, and the peak periods of damage were from the middle of May to the middle of June and from the last ten days of September to the middle of October. The peak periods of damage by the adult of leaf miners in a day were from 9:00 to 11:00 and 13:00 to 15: 00. The female-to-male ratio rose significantly in the last ten days of...
|
|
Received: 26 November 2002
|
|
|
|
|
|
|
