First, physical control
1. Select hybrid sunflower varieties.
2, suitable for late broadcast. The sowing date is May 25-June 10 as the most suitable sowing date. This will stagger the blooming period of sunflower and the adult stage of sunflower aphid to achieve the purpose of preventing the damage of sunflower.
3, insect kill traps. A solar-powered insect killer was installed to trap and kill sunflowers. On average, one lamp was placed for every 50 mu. The distance between the lights was 180-200 meters, and the distance from the ground was 1.5-1.8 meters. It was a checkerboard distribution.
Second, chemical prevention
The use of sex attractants to seduce and kill the male moth, so that the female moth can not normally mating, reduce spawning, to achieve the purpose of pest control. Place 1 or 2 cucurbits per mu.
Third, biological control
Cast Trichogramma. Trichogramma eggs are laid in the eggs of sunflower pods, and they are fed with yolk to kill the eggs of sunflower pods and achieve the purpose of controlling the sunflower pods. Trichogramma was released from the initial stage of flowering and the amount of bees was 30,000 heads/mu (in two separate batches). Use a toothpick to attach the bee bag to the back of the sunflower's upper blade to prevent rain.
Curcumin is a yellow pigment extracted from the rhizomes of turmeric and other plants of the ginger family. It is an acidic polyphenolic substance with unsaturated aliphatic and aromatic groups in the main chain. It is commonly used as a meat coloring agent and acid-base indicator, and also has pharmacological effects such as anti-inflammatory and antioxidant.
Curcumin powder,Curcumin 95%,Turmeric root Extract.
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