| 1 | In addition, based on the characteristics of bird damage of cherry, suggestions of integrated control techniques to destructive birds were raised. | |
| 2 | Air quality, dust, litter, odours and vermin are strictly controlled too. | |
| 3 | Surrounding the loss rate of cherry made by destructive birds, the reasons for the differences of researches both at home and abroad were discussed. | |
| 4 | The results showed that the dominant kind of destructive birds in Beijing were Black-billed Magpie, Azure-winged Magpie and Tree Sparrow. | |
| 5 | The species and amount of pest birds, the loss of bird damage, foliar characteristics and popular management measurements in cherry orchards in Beijing were surveyed. |
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