What are rice pests?

Rice pests include rice thrips, rice bracts, longitudinal leaf borer, rice planthopper, Chilo suppressalis and so on. Among them, Chilo suppressalis is only harmful to rice and is a monophagous pest. So let's learn about the situation of Chilo suppressalis.

Related situation of Chilo suppressalis

1. Form

The forewings of adults are triangular. The female moth's forewings are yellowish, with a black spot in the center and a bunch of yellowish-brown villi at the end of the abdomen, which fall off after spawning. The larvae are milky white or yellowish green. The abdomen foot is underdeveloped. The pupae are yellowish white at first and then yellowish green. The antennae of the male pupae are as long as the 7th or 8th ventral segment.

two。 Harm

It harms rice plants to produce dead heart seedlings at tillering stage and white ears at booting stage. The death rate of rice plants at jointing stage and heading stage increased because of the difficulty of ant borer drilling.

3. Prevention and cure

(1) trapping: using frequency vibrating lights to trap adults should be mastered in the initial peak period of moths to turn on the lights to trap and kill adults.

(2) medicament: at the initial stage of rice break, 20 ml of 5% Regent suspension per mu, 80 grams of 90% crystal trichlorfon, 50 kg of water were sprayed, and the medicine was used for the second time 7 days later. Regent can also be sprayed at the peak of egg hatching and the period of breaking and showing ears to prevent withered heart and white ears. The recommended dosage is 45 ml per mu. In order to reduce the cost and ensure the control effect, fipronil can be mixed with common borer-killing agents or alternately with conventional borer-killing agents.