How to control pests during the cultivation of roses? The pests that harm the rose are mainly of the following species, and corresponding control measures can be taken according to their hazardous characteristics. 1. The moths are mainly the larvae of the yellow moth, the green-spotted moth, the brown moth, the brown moth and the flat moth, and they feed a large number of leaves during the high temperature season. Control methods: Once discovered, spray immediately with 90% of the trichlorfon crystal 800 times, or with 2.5% chlorfluthrin cream 15 times. 2. The scale insects mainly include white rims, Japanese wax worms, red wax worms, brown soft wax worms, blown cotton pods, scorpion shield worms, and snake-eye maggots. Their harm is characterized by sucking the sap of young stalks and young leaves. , resulting in poor plant growth, mainly caused by high temperature and humidity, poor ventilation, poor light. Control methods: In its nymph hatching period, it can be sprayed with 25% of buprofezin WP 2000 times. 3. The locusts mainly consist of rose tubers, peach pods, etc. They suck the sap of the young organs of the plants, harm the tender stems, young leaves, buds, etc., and seriously affect the growth and flowering of the plants. Control methods: Spray with 10% imidacloprid wettable powder 2000 times in time. 4. Rose beetles in the larval stage, dozens or hundreds of cluster damage, in a short time can eat the leaves of the plant, leaving only a few main veins, seriously harming the normal birth of the plant. Control methods: A small amount of potted plants can be used to pick up leaves with a large number of larvae when they first emerge, and they are trampled to death. A large number of them can be sprayed with 75% phoxim 4000 times solution. 5. The cinnabar leafhopper can occur from 10th to 15th generation a year. The larvae, pups, and rufous clusters are harmed by the backsucking of the leaves. The eggs are produced on both sides of the lobe dorsal veins or under the gathered fine mesh. Each female can lay 50 to 150 eggs, up to a maximum of 500. For a generation of time from 23°C to 25°C, it only takes 10 days to 13 days, and at 28°C, it takes about 7 minutes. Day to 8 days. The occurrence of pods in the hot and dry seasons often leads to a large number of dense white spots on the front of the leaves, with yellow spots on the backs of the leaves. Control methods: Once discovered, spray with 25% of B&R WP 2000 times in time. 6. The scarabs are mainly green-green beetles, black cashmere beetles, white-flowered beetles, small blue-flowered beetles, and so on. They often feed on new leaves, shoots, and flower buds, which seriously affect plant growth and flowering. Control methods: Use the adult dead nature to shake off in the evening. Using the phototaxis of the adult, blacklight trapping. In the adult feeding hazard, sprayed with 50% of malathion EC 1000 times. In addition, there are hazards such as beetles, night moths, bridge-building moths, bag moths, leafhoppers, stink bugs, etc., and corresponding control measures can be taken according to the hazard characteristics of different pest species.
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