The banana leaflets are often harmed by pests such as banana weevil, cymoloides, skipper, Spodoptera litura, nettle, leafhopper, etc. before they grow to buds; banana leaf heart rot, bunchy top, leaf spot, stem Diseases such as rot and yellow swollen diseases. As a result, banana leaves and plants are damaged, causing the banana leaves to be incomplete, yellow, necrotic, and dead. Seriously affect the growth and development of bananas, slow growth, delaying the bud or unable to pull buds and fruit. Therefore, it is necessary to strengthen the prevention and control of diseases and pests in the middle of banana growth to ensure the normal growth of bananas and promote the high yield and quality of bananas. The prevention and control techniques for banana growing season are described below.
1. Weevil: Mainly harms banana pseudostems. For banana gardens that are ineffective for clear gardens, they should remove dead leaves and residual stems in time, excavate old banana heads, burn them centrally, or bury them deeply to eliminate breeding sites. Pay attention to the inspection of the banana plant. If it is found that there are tree gums out of the pseudo-stem, you can spray or sprinkl the pseudostem with 1000 times of farmland or 2000 times of kungfu. Use Miller or Earth Star particles to be placed on the banana head or on the abacus, cover the back of the earth, or place 3 to 6 grams of Milor or Earth Star at the bifurcation of 3 to 4 old leaf sheaths. Once every 20 days, use 2 to 3 times for poisoning.
2. Cross veins, nets: mainly draw leaf juice. To master the initial occurrence, use pesticides such as 1.5% Pole 1500 times or 2.5% Kung Fu 3000 times. Once every 10 days, spray twice.
3. Larvae, Spodoptera litura: mainly harm the leaves. Regularly check the banana plant and promptly remove the insect or egg mass. When the newly hatched larvae are concentrated on the edge of the leaves or on the back of the leaves, they are sprayed with 1.5% Pluronic® 1500x or 10% efficient Xeroxa 2000x.
4. Leafhoppers: The main damage to the leaves, the suction juice, the leaves were gray white, severe leaves dead. Pay attention to the inspection and found that when there is a flaw in the veins on the back of the leaves, it can be sprayed with a 1,000-fold solution of dicofol or a 1,000-fold solution of cesium tetracycline or a 1500-fold solution of acrotic acaricide. Medication alternately used, once every 7 to 10 days, even spray 2 or 3 times.
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