In the agricultural world, September marks the transition from winter to spring, a time crucial for crops as it marks the period of flowering and fruiting. When minimum temperatures drop unexpectedly, the consequences can be devastating. This year, the threat of frost in September is intensified due to the possible arrival of the phenomenon of The Girl, which experts say could lead to colder than usual weather. Why are these late frosts so dangerous and what can be done to mitigate their effects?
Impact of the La Niña phenomenon
La Niña, characterized by the cooling of the Pacific waters, directly influences global climatic conditions. During its presence, minimum temperatures are often colder than normal, especially in agricultural areas of the southern hemisphere. This increases the risk of frost just when fruit crops and other plantations begin to awaken from their winter slumber.
September frosts are particularly dangerous because they coincide with the critical phases of flowering and fruiting in many crops. For example, cherry, a fruit very sensitive to cold, its ability to curdles when temperatures fall below -1.5°C. A frost at this stage can result in the total loss of a season's production. In crops such as walnut, the damage manifests itself in the abortion of pistillate flowers, directly affecting nut production.
Technological tools to mitigate risk
At Tierraverde we understand that adverse weather conditions require precise solutions and adapted to each crop. Our key tools to combat frost are:
Low rainfall water sprinkler systems: We use cutting-edge technology with high-frequency, low-flow pulsating emitters, with precipitation of around 1 mm per hour, such as Pulsator 205™ and Pulsemax 360°These systems distribute thin layers of water over the crops, with radii of 3.5 meters, forming a protective layer of ice which insulates and protects the plant from damage caused by extreme cold. Highly efficient, easy to install and affordable, this alternative requires low water flows, making it the preferred choice for growers.
Anti-frost electrical towers: We implement wind towers, such as the Antibrina 3-22 electrical tower, designed to mix the air layers in vineyards or fruit fields. These towers prevent the formation of stagnant cold layers near the ground that can damage young shoots and flowers. They are characterized by their low operating cost, low CO2 emissions and reduced noise levels.
These solutions protect crops and optimize crop yield, which is evidenced by the ex ante and ex post analysis of buds during frost episodes, crucial aspects in areas where frost represents a constant threat. Farmers who use our products employ proven technologies to mitigate climate risks and ensure the health of their plantations.
Proactive management for an unpredictable climate
The future of the agricultural climate is uncertain, but adverse conditions will become more frequent. The key is in the proactive management and the constant monitoring weather conditions. Today's technology allows farmers to anticipate extreme weather events, such as frost or heat waves, up to a week in advance. This gives them a critical window to take preventive measures, such as activating frost control systems or adjusting cold compensator application strategies.
Ignoring these signals and failing to take action can result in structural losses, both in terms of production and income. In a year with such uncertain climatic conditions as 2024, the ability to adapt and the efficient use of technology will make the difference between success and failure in agriculture.
September frosts represent a constant and increasingly common threat. With the right tools and strategies, it is possible to mitigate their impact and protect crops from the effects of climate change. Don't be left behind and ask about the best alternative for your crop.
