How to water flowers in different seasons and the general methods of controlling flower diseases and insect pests

General methods of controlling Flower Diseases and insect pests

General methods for the control of flower diseases and insect pests:

The main results are as follows: 1. Keeping the environmental hygiene of flower cultivation can reduce the harm.

2, protect the plant, do not break the skin, be injured, beware of germs invasion.

3. Pre-disinfection of culture can kill germs and pests.

4. Strengthen daily management, keep proper water and fertilizer, smooth air, suitable temperature and daylighting, so as to make the plant grow healthily and control the breeding and spread of diseases and insect pests.

5. Outdoor overwintering flowers, spray or smear stone sulfur mixture after falling leaves, spray Bordeaux liquid 1-3 times in early spring and before flower bud germination, wither and control diseases and insect pests.

Blight disease

Sowing seedlings

Scalded near the surface at first, then softened and fell to the ground and died.

Sprinkling plant ash or irrigating ammonium solution on the surface of basin soil can sterilize and protect seedlings.

Rust disease

Carnation and Rosaceae flowers

In the early stage, orange or yellow spots appeared on the leaf surface, but in the later stage, the back of the leaf was covered with yellow powder and the leaf was scorched.

Anthrax

Ornamental fruit flowers

The pericarp appears brown spots before fruit prosperity and decline, gradually expands, and hardens after fruit prosperity and decline.

Spray 1-3 times after flower fade or stone-sulfur mixture or carbendazim

Powdery mildew

Flowers of Rosaceae and Compositae

White powder appears on both sides of the leaves

Reduce humidity, spray Dysenamine or carbendazim solution to prevent Bordeaux blight

Dew mycosis

Herbaceous flowers

In the early stage, the leaves appeared white spots with indistinct outline, and in the later stage, they were covered with white fine hairs.

Spraying Bordeaux liquid for 1-3 times can be prevented.

Soft rot

Herbaceous flowers

Flooded spots appear on the leaf surface, petiole and flower stem, wilting and drooping behind the face.

Spray Bordeaux.

Soot disease

Perennial evergreen flowers

Dark brown coal stain appeared on the leaves, and then gradually expanded to form a black soot-like mildew layer.

Spray Bordeaux, or use 5% alcohol to detect the coal.

Brown streak

Orchid flowers

There are brown sunken spots on the leaf surface and the leaf is dry coke.

Pay attention to shading and increase air humidity, equal amount of Bordeaux liquid

Black rust

Compositae flowers

In the early stage, yellow-green spots appear on the face, then fly yellow powder after rupture, and finally become black patches.

Strengthen drainage, full sunshine, strengthen ventilation, spray Bordeaux liquid.