Growing durian, a billion dollar tree that has a house in Dak Lak, I’m very worried, it flowers, the pistil bursts and then suddenly falls off.

Mr. Y Mon Nie’s family’s 250-tree durian garden (village 13, Cu Ne commune, Krong Buk district) has lost more than 70% of the flowers that were releasing pistils. Although every few days he mixed medicine to prevent flower and fruit loss and sprayed the garden, it was ineffective.

According to Mr. Y Mon, durian is a difficult crop, sensitive to weather and poorly tolerant of drought. The intensely hot weather over the past few days, mixed with a few light rains, has caused his family’s durian garden to lose its flowers en masse.

Mr. Y Mon sadly said: “From the durian garden full of flowers, within just a few days, the flowers fell from their roots. This year’s durian crop, my family is sure to lose money.”

Many days have passed, but Mr. Nguyen Dinh Linh (Tar village, Ea H’ding commune, Cu M’gar district) is still sad because his family’s 4 hectares of durians were in the process of removing their pistils when they suddenly fell completely. flower set.

Mr. Linh said that from the beginning of the season until now, his family has spent nearly 400 million VND to buy fertilizers and pesticides for the durian garden. Therefore, in order to have income, Mr. Linh’s family had to make flowers again a second time, even though they knew that the success rate was not high, because the rainy season was coming, when the flowers bloomed and were exposed to heavy rain, they would fall.

Now, Mr. Linh just hopes that the weather will be more favorable so that the second flower-making process will have a high fruit-bearing rate, helping his family compensate for the care and investment.

Y Mon Mlo’s family’s durian garden (village 13, Cu Ne commune, Krong Buk district, Dak Lak province) has lost more than 70% of its flowers.

Mr. Nguyen Hac Hien, Head of the Department of Crop Production and Plant Protection (Department of Agriculture and Rural Development) said that the unit has obtained information on many durian gardens in the districts: Krong Pac, Krong Nang, Krong Buk, Cu M’gar… are in the process of flowering when they fall in large numbers, affecting productivity and crop output.

According to Mr. Hien, when durian growers discover this situation, they should consult techniques from reputable scientists and experienced gardeners to apply to their family’s durian garden, ensuring The tree grows well and achieves a high fruiting rate.

Discussing the situation of durian flowers that are in the process of removing pistils and then falling en masse, Dr. Vo Huu Thoai, Director of the Southern Fruit Tree Institute, said that there are many reasons why durian trees lose their flowers, such as: The plant has a nutritional imbalance; the plant forms buds (young shoots); The tree suffers from “heat shock” (temperature is too high, too low or flooded); damaged by pests…

However, in the past few days, in Dak Lak, there has been a prolonged period of hot weather, mixed with a few rains, which may be the cause of many durian gardens suffering from heat shock and mass flower loss.

To limit this situation, Dr. Vo Huu Thoai recommends that durian growers should create vegetation (grass) in the garden to retain soil moisture in the dry season, which will contribute to reducing evaporation. Water causes heat “shock” to plants; Watering plants during the flowering and fruiting stages needs to be maintained regularly and adequately.

Accordingly, during the flowering stage, plants need to be watered with enough moisture to help flowers develop well and pollen grains to be healthy. One week before the flowers bloom, it is necessary to reduce the amount of water by 2/3 at each watering (the cycle does not change) to help the flowers bloom, the pollen grains are healthy, have the ability to pollinate, and produce good fruit. When the flowers have set fruit, gradually increase the amount of water to normal so that the fruit grows healthily and achieves high quality.

During this period, durian growers can spray water on the foliage to reduce heat for the tree and create a cool microclimate for the garden, spraying time in the morning (before 10 a.m.) or afternoon (from 3 p.m. – 5:00 p.m.), do not spray at noon because the sun will shock the plant even more.

Besides, it is necessary to combine fertilizer application through watering or soluble irrigation systems for plants. Note, it is necessary to apply a balanced dose of NPK fertilizer; Use products that can help plants withstand adverse weather and environmental conditions such as humic, fulvic acids, brassinosteroids, proline, amino acids/amino acids, calcium silicon…