Common Pests on Light Bulbs and Their Control Methods

Bulb Pests - Whiteflies

harm

The thorns suck sap from the back of the leaves, causing the bulbs to wilt and inducing sooty mold. The bulbs are no longer crystal clear, directly affecting the ornamental value of the plants.

Prevention and treatment measures

Improve ventilation and reduce air humidity.

In the early stage of the outbreak, you can use 1000-2000 times diluted 40% oxydemeton-methyl emulsifiable concentrate for spraying. You can also use 500 times diluted malathion or 1000 times diluted malathion mixed with DDT for spraying. Two days after spraying, use a strong stream of water to wash away the dead insects together with the black powder.

(Note: Whiteflies are highly resistant to pesticides and are difficult to kill. Spraying should be continuous and the pesticides should be changed frequently.)

Bulb Pests - Scale Insects

harm

It sucks sap, causing the plant to grow poorly and, in severe cases, wither and die. Many white flocs appear at the top of the bulb, and later appear in sheets.

Prevention and treatment measures

If the number is small, you can use a brush to remove it or a toothpick to poke it out.

You can also use a diluted solution of quick-kill (such as Jiebizhi or Huhuashen) for spraying (use with caution if it contains powder), and irrigate and wash the roots.

Use 75% alcohol to brush the areas where scale insects are concentrated several times.

Light bulb pests - small black flies (Sharp-eyed fungus gnats)

harm

They like humus-containing food and usually fly around meat, chewing the liquid meat, causing the wounds to become infected and cause disease.

Prevention and treatment measures

Adult black flies prefer moisture and are afraid of dryness. Keeping the soil relatively dry in foreign environments will not create a habitat for the adults.

Pay attention to ventilation during maintenance, keep the surface of the potting soil clean, and do not put anything into the pot as fertilizer. Scientific fertilization is the right way.

Spread a layer of vermiculite or river sand on the surface of the potting soil, and do not leave the humus soil exposed.