Melon Diseases and Insect Pest in Greenhouse and Open Field in Hainan
The survey was conducted to investigate melon diseases and insect pests in plastic net-house and open field in Hainan. The results showed that plastic net-house delays the occurrence of insect pests and reduces damage of the pests. The similar benefits of plastic net-house were also seen for virus diseases. However, no obvious difference of powdery mildew and downy mildew was seen between protected culture and open field production.