White cotton aphids damage sugarcane

The white leaf hopper under sugarcane leaves is actually a white cotton aphid, whose scientific name is Ceratovacuna lanigera is a dangerous pest not only for the growth and development of sugarcane but also has a negative effect on productivity and sugar quality.

There are two types of wings with wings and no wings, aphids with wings, but only account for a small proportion of the aphid population but equally harmful non-winged aphids because they can move and spread from one field to another, from the previous crop. to the next season. Non-winged bugs are less mobile but have a long lifespan and are very wrong, a lifeless adult aphid can lay hundreds of baby bugs. The so-called white cotton aphids because of the aphids mature and young aphids in the chest and abdomen are covered with a layer of wax like the larger white cotton gets thicker .

(Photo: ldd.go.th) The effect of this aphid on the yield and quality of sugarcane especially when they arise into epidemics, in warm conditions, high humidity, sugarcane is growing strongly and in The process of sugar accumulation especially on the sugarcane fields lacking in light. All of the aphids live together in the back of the sugarcane leaves, along the leaf veins to suck the plants, directly affect the growth of sugarcane, on the other hand, the secretion of bed bugs is a good environment for black soot disease. Growth on the leaves and sugarcane stalks affects photosynthesis. As a result, the plants grow stunted, reduce yield and the sugar, if severely damaged, the tops can lose the ability to germinate, the roots are not sprouting, greatly affecting the density of the original sugarcane crop. When the weather becomes more suitable for aphids with a lot of wings, the rainfall decreases, which is favorable for migration from one place to another, the aphid population grows strongly in the middle and end of the sugarcane season, the possibility of spreading from sugarcane fields Large and new small sugar cane fields are very large. Therefore, you should pay attention and take positive precautions as follows:

- From the next crop, it is not advisable to arrange 2 adjacent sugarcane crops adjacent to each other like your current sugarcane fields, which is both convenient when carrying out cultivation and plant protection measures, both beneficial for preventing aphids that move harmful from large sugarcane fields that are about to be harvested to growing sugarcane fields.

- Early nitrogen fertilization and balance of nitrogen, phosphorus and potassium.

- Clean grass and cut old leaves to make the field clear.

- Tracking and timely detection of bed bugs to swipe by hand will be effective and less harmful.

- If the density of aphids is high and there is a risk of spreading to sugarcane fields, use one of the drugs such as: Pyrinex, Dragon, Dimenat, Bascide, . to alternately spray, can mix with mineral oil SK Enspray 99EC will has a higher effect of killing bed bugs.

Note :

- Need to equip full labor protection when spraying, should spray at cool and spray carefully on the underside of leaves.

- How to spray: Refer to spraying on sugarcane fields to eliminate yellow-headed insects in the section of NNVN Plant Press No. 183 on September 13, 2006.