Prevention and control of diseases and insect pests of dragon bone flower

1. Common diseases

1. Scab

Features: the disease mainly erodes the branches of flowers, on which there will be many scattered or aggregated brown dots, and the epidermis near the dots will be concave.

Treatment:

(1) if it is a newly diseased dragon bone flower, you can clean and burn the brown dots with a sharp knife and smear the diseased area with Bordeaux slurry.

(2) spray the diseased area and the surrounding branches and leaves once every other week, until every two weeks in the later stage.

2. Anthrax

Features: it mainly invades the fleshy stem, the spot formed by this disease is larger, the diameter is 2-3cm, there are semicircle shape, but also oval shape, the color is brown, later will become grayish white.

Treatment:

(1) usually pay more attention to it. If you find yourself sick, remove the diseased stem and burn it. Apply it every 5 days with copper oxychloride solvent.

(2) if you want to breed, choose branches that are not diseased, soak in 70% topiramate and 75% chlorothalonil for 30 minutes and then dry.

(3) if it is not long after the onset of the disease, mix 30% mancozeb with copper oxychloride, smear it every ten days and spray it 2-3 times.

Second, common insect pests

1. Keel flowers rarely encounter the threat of insect pests, if the birth of platinum needle worms, grubs, mole cricket, you can use a thousand times the drug to irrigate the roots, can be effectively stopped.

two。 If the room is not well ventilated, it is likely to cause red spiders to harm the top of the plant, and if you find that the top is reddish brown and has cobwebs, you can deal with it with enemy kill.

3. If there are aphids or shell insects, the detergent can be melted and sprayed, because it is an alkaline substance that will alkalinize the flowerpot, so it is best to wrap the flowerpot in a plastic bag before spraying. Washing powder can plug the stomata of pests and make them unable to breathe and die. After killing insects, wash the leaves of the flowers.

4. If a snail is found, it will eat the stems and leaves of the flowers and can catch them by itself. Be sure to pay attention to if you accidentally drop the branches and leaves of the flowers and drain the juice, don't do it in the import, wash your hands quickly after processing, or you'll get numb.