Hot and dry red mites invade cassava.

Sa-Lay-Tay

5 May 2022 05:55

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With hot and dry weather, this is the right time for the outbreak of cassava mites.

Department of Agriculture

Remind farmers who grow cassava to regularly survey the fields.

Before the Moina outbreak severely affects the yield of cassava.

The destructive nature of the red mite

Larvae and adults suck the sap under the leaves and form filaments above the leaf surface at the sucking area.

As a result, the leaf area has white spots.

especially along the leaf veins

later expanded to spread wider

Make the entire face pale white, the leaves hard, crisp.

If the infestation is severe, the leaves will fall off the plant.

Affects the growth and formation of cassava tubers.

Methods for prevention and elimination of cassava mites Mr. Sarut Suthitrom, Director of Plant Protection Research Development Bureau

Department of Agriculture recommends that in dry weather, farmers regularly inspect their plots.

If the infestation is not severe, collect the cassava leaves found with red mites to destroy.

in case of severe outbreak

Choose one type of mite repellent and use it at the recommended rate, i.e. hexethiazox 1.8% EC at 100 ml per 20 l of water or 5 to 10 ml of thebufenpirad 36% EC. per 20 liters of water or pyridabane 20% WP at the rate of 10-15 grams per 20 liters of water or xyflumethophane 20% EC at the rate of 10 ml per 20 liters of water or spiromezifen 24% SC Rate 10 ml per 20 liters of water or fenbutatin oxide 55% SC rate 10 ml per 20 liters of water

Spray when red mites are found on the leaves, the top and bottom leaves begin to show signs of wilt, especially young plants.

Spray the whole plant, under the leaves and on the leaves 1-2 times, 10 days apart.

However, the use of pesticides

Should be sprayed all over the area under the leaves and behind the leaves.

And spray only the area where the destruction of the mites is found only.

In addition, the same substance should not be sprayed more than 3 times in a row. The types of substances should be switched to prevent resistance to insecticides.

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