Autumn potted chrysanthemums have more pests and diseases. The most serious diseases occurred were: leaf spot, black rust, brown spot, powdery mildew and aphids, red spider mites, and whitefly.

Leaf spot can be treated with 1% Bordeaux mixture or 50% zein powder plus 1200 times water spray at the beginning of the disease. Once a week, it can be sprayed three times.

In the early stage of the onset of black rust, 50% thiophanate powder plus 1000 times water (or 50% carbendazim plus 800 times water) can be sprayed once a week for 3 consecutive times.

When powdery mildew occurs in the chrysanthemum, the white, round and round spots on the damaged leaf surface gradually grow into one piece. The initial stage of disease can be sprayed with 50% tumefather 1000 times liquid, or sprayed with 0.3-0.5 degree lime sulfur mixture, and the effect is better.

Aphids are very harmful and can be sprayed with 2000 times of 40% omethoate or 2000 times of 2040% chrysanthemum emulsion.

Puzzle Sorter and Mystery Puzzle

Jigsaw Puzzle Tray,Puzzle Storage Case,Jigsaw Puzzle Storage,Jigsaw Puzzle Sorting Trays

Eastony Industries (NingBo) Co., LTD. , https://www.eastony.com