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The sunflower borer, also known as the sunflower borer, is an important pest on sunflowers. It mainly causes damage by eating sunflower seeds through its larvae, and forms many crisscross tunnels. The bitten debris and feces fill the tunnels and cause serious pollution. When it rains, After the flower disc and seeds become moldy and rotten, the marketability is reduced.
The sunflower flowering period is the active period for adult borers. They usually lurk during the day and become active in the evening. They feed on nectar on the sunflower disk, mate, and lay eggs. The eggs hatch into larvae in 3-4 days.
The method to control sunflower borer larvae is to use 100 grams of 8000 units/mg Bacillus thuringiensis insecticide per acre after 50% of the sunflowers bloom, dilute it with talc powder into a dust agent and spray it for control.
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