Why are there bugs in grapefruit? Harmful symptoms and rusty symptoms of grapefruit thrips

The fragrant season of grapefruit flowers is also the season with high incidence of diseases and insect pests. At this time, the prevention and control of thrips and rust should be strengthened to ensure the fruit quality of grapefruit. Otherwise, grapefruit will have a great loss, so we should do a good job in this area.

Pomelo is in full bloom, its flowering period is long, from flowering to young fruit stage, it is vulnerable to small yellow thrips, flower thrips and citrus rust. In order to avoid affecting the fruit quality of grapefruit, please strengthen the prevention and control.

Pomelo farmers often ignore its existence because its body is small and its habits are easy to hide. He may also climb into the grapefruit meat, and during flowering, thrips will cluster the floral organs to feed, causing damage to the floral organs and affecting pollination. In the young fruit stage, thrips and rust will pierce the epidermis cells of young grapefruit with piercing mouthparts to absorb juice, resulting in rough or rust spots and no luster, and the damage is obvious with the growth of the fruit, and it is often found that the best control time has been lost. In order to effectively control thrips and rust, the best control time from flowering to fruiting must be grasped in order to maintain the quality of grapefruit.

The harmful form of thrips

The breeding speed of thrips and rust is quite fast, and early prevention and control at the initial stage can get twice the result with half the effort. Thrips usually come out after the dew is dry, and the control effect is better at this time. The later you manage, the more serious the diseases and insect pests will be. So we should find it in time and deal with it in time.