The Causes, Control Measures and High-yielding Cultivation Techniques of Pests and Diseases in Greenhouses(part 1)

 The Causes, Control Measures and High-yielding Cultivation Techniques of Pests and Diseases in Greenhouses(part 1)
1. Continuous planting on a large scale has created comfortable ecological conditions for pests and diseases.
2.Extensive farming operations increase the original base of disease and insect pests,single planting of vegetable and growing a single vegetable year after year increasing the number of diseases and insect pests.
3.The ecological environment that suitable temperature ,high air humidity and day and night temperature difference can help increase the reproductive damage and population of diseases and pests in the greenhouse.