In sunflower breeding, everyone attaches great importance to the study of resistance, and the control of pests and diseases is relatively traditional. Compared with the current resistance breeding has entered the field of biotechnology, the control of pests and diseases has remained in a long time ago, which is very abnormal. The following is a brief description of the common pests and diseases present in sunflowers and their hazards:
(1) Insect borer
As one of the most serious pests of sunflowers, it mainly lives between the grains of the sunflower disc, and travels back and forth in the flower disc, resulting in many tunnels, and the residue of the insect feces and slag remains in the affected part, and finally leads to the rotting of the flower disc, which seriously affects the quality and yield of the sunflower.
Worm borer
(2) Thrips
The second pest that harms sunflowers is the thrips, which have good reproductive abilities and can survive well within sunflower flowers. The main hazards of thrips include two aspects: 1, nibbling on the mature shell of sunflowers, causing sunflowers to appear water rust, which seriously affects the quality of sunflowers; 2, swallowing sunflower pollen, affecting the fruiting rate of sunflowers, resulting in a decline in yield per unit area of mu.
Thrips
(3) Whitefly
Whitefly are stinging mouthpieces that suck up sap on the leaves so that the virus is transmitted. Whitefly mainly nibbles on sunflower leaves to maintain basic survival energy, and the excrement of whiteflies outside the initial time can contaminate the leaves and even cause powdery mildew to occur in the whole sunflower. Not only will it lead to a serious reduction in crop yields, but it will also affect the nutritional content of the crop itself.
Whitefly
The above three are the main pests and diseases that affect the quality and yield of sunflowers, and there may be many more, please supplement them with experts and friends who understand this work. Hope for many exchanges, thank you!