Prevention and control of common diseases and insect pests of flowers in spring

Scale insects (flower lice): most of the scale insects on Magnolia, rose, yellow poplar and Haitong begin to hatch from mid-April to mid-May. Prevention and control methods: 1. The worm body is gently brushed off manually before hatching. two。 Check frequently and spray 40% omethoate 1000ml 1500 times during the larval incubation period.

Rust: begonia rust is easy to damage a large number of flowers and trees after the rain in April or May, and rose rust occurs when roses are budding. Prevention and control methods: 1. When the rose sprouts, the first yellow bud should be removed and burned in time to eliminate the source of infectious disease. two。 Spray 15% of strychnine 700Mel 1000 times in the initial invasion period.