The control of plant diseases and insect pests depends on these tricks.

Last time we introduced the common types of diseases and insect pests. How can we not be distressed when we see flowers and plants being tortured like that? how can we prevent them from happening? How to kill the disease in time? Although prevention and control can not be generalized, but from the point that we can start with some common pests, come and have a look.

Piercing and sucking pests

Aphids, red spiders, whiteflies, scale insects, thrips, bugs, etc.

Red spider

Aphids

Thrips

Bemisia Tabaci

Stink bugs

These pests use needle mouthparts to suck the sap of flower tissue, causing symptoms such as curling leaves, galls or gray-yellow spots on leaves or withered and yellow leaves and branches.

Control methods: spray 40% omethoate 1000ml 1500 times solution; in addition to shell insects, other pests can also spray 2.5% deltamethrin 2500ml 3000 times solution; control red spiders can also spray 20% dicofol 1000 times solution.

Leaf-eating pests

Diamondback moth, coir moth, roll leaf moth, night moth, diamondback moth, dead leaf moth, Phoenix butterfly, pink butterfly and other larvae, as well as beetles, elephant beetles, leaf wasps and so on.

Green spike moth larva

Three-segment leaf peak

Copper green beetle

Curly leaf weevil

Withered leaf butterfly

These pests use chewing mouthparts to eat solid food, some bite leaves incomplete, some curl leaves, some eat up leaves, leaving only thick veins, and so on.

Control methods: ① artificial elimination of overwintering cocoons or protective bags and so on. During the initial incubation period of ② larvae, 1000 times solution of 90% trichlorfon or 50% phoxim or 50% fenitrothion was sprayed. ③ can also use artificial killing method to control beetles and leaf wasps.

Stem borer

Longicorn beetles, bark moths, gibbons, stem bees, etc.

Longicorn beetle

Stem wasp

Gibberellin

Will drill flowers and trees branches, stem food damage, resulting in holes or tunnels.

Control methods: different kinds of stem borer pests have different control methods, but there are common control methods, that is, steel wire can be used to insert wormholes, stab the larvae or inject 80% dichlorvos or 40% omethoate 2050 times from the wormholes, immediately after injection, the wormholes can be sealed with slime to kill larvae, longicorn beetles can also be used to artificially kill adults, and light can be used to trap and kill adults in the control of wood beetle moths. The control of gibberellin can also make use of the false death habits of adults, artificial shook branches in the early morning and so on.

Underground pest

Grub, mole cricket, ground tiger, golden needle worm, big cricket, maggot and so on.

Big cricket

Mole cricket

Underground pests are pests that harm the roots of flowers or near the main stem of the soil. Tree lice, commonly known as tree lice, are harmful to many kinds of flowers, such as figs, rose, peony, rose, hydrangea, camellia, mulberry, etc., the damaged plants grow slowly, branches and leaves are withered and yellow, and a large number of honeydew discharged by scale insects can induce the occurrence of coal fouling disease.

Control methods: ① timely inspection, early prevention and control, when the number of insects is small, brushes or bamboo pieces can be used to manually brush or cut off the damaged branches and leaves and burn them centrally. ② took 1 cigarette butt and 1 cigarette ash in the ashtray, added 40 ~ 50 parts of water, soaked for 1 day and night, mashed and filtered and sprayed, which had a certain effect on the newly hatched scale insects. ③ can refer to the control measures of whitefly.

In fact, the emergence of plant diseases and insect pests is mostly due to problems with the plant growth environment. Soil, drainage, ventilation, light and so on are all very important! I hope everyone's plants can grow healthily.