What causes eggplant leaf curl? Latest cause analysis

When growing eggplant, eggplant leaves often curl. Why does this happen? There are many causes, and the main ones are related to growing environment conditions and external stimuli. In some cases we can basically prevent eggplant leaf curl, but first of all we still need to find the specific cause and identify what is causing the leaf curl. Let's take a look together now!

1. Nutrient deficiency

Eggplant growth requires certain trace elements, and when the plant lacks them, abnormal reactions appear accordingly. For example, a deficiency of boron and calcium can cause leaf curl, and this kind of leaf curl caused by nutrient deficiency is also a physiological disease. Growth imbalance will lead to leaf curl. It is best to use some boron fertilizer and calcium fertilizer together during the eggplant seedling stage, or apply them as a foliar spray later; they can also be sprayed after leaf curl occurs, and the condition will improve after a period of time.

1. Viral disease

After eggplant is infected with viral disease, leaf curl also occurs, but in addition to leaf curl there are also some wrinkling and plant stunting, which are relatively easy to distinguish and identify. Once it is confirmed to be viral disease, you can promptly buy the corresponding biological pesticide and use it to avoid the plant withering after the disease becomes severe. It is best to treat it promptly, otherwise sap friction during field farming operations will spread the disease.

3. Tea yellow mite

This kind of mite commonly damages eggplant, mainly gathering at the stem position to suck eggplant sap, and eventually spots and yellowing appear. Severely damaged leaves curl, mainly curling toward the back of the leaf, which can be identified; sometimes the leaves become severely twisted and deformed, and sometimes it is also easy to confuse, so careful observation is needed. At the peak of occurrence, in the later stage of eggplant growth, you can use a 3000-fold solution of 80% abamectin emulsifiable concentrate or a 2500-fold solution of 3% propargite emulsifiable concentrate diluted with water and spray.

4. Temperature and humidity

The later stage of eggplant growth happens to be summer. At this time, when temperatures are high, there is also a lot of rain. Under high temperature and high humidity, mainly pests and diseases occur, affecting plant growth. It is best to plant on somewhat higher sloping land, with a suitable planting density, not too dense, and field humidity will be greatly reduced. Drought and high temperature will be even greater, so there must be a water source for timely irrigation.

Eggplant leaf curl is a common phenomenon, but control must grasp the root cause to be effective. However, planting management must consider all causes, and it is best to carry out comprehensive prevention so as not to give eggplant leaf curl a chance; but most of the time it is only discovered after leaf curl occurs, so treatment is also very important.