Grapevine problems remain a long-standing, critical issue in the production of high-quality grapes and wine. As climate conditions change and market demand for reduced pesticide residues increases, the need for modern, more sustainable vine protection strategies becomes essential. The health of the vine’s above-ground parts is very important because they are responsible for photosynthesis, shoot growth, and the right way to make fruit.
Among the most common and destructive grapevine problems are the European grapevine moth (Lobesia botrana) and powdery mildew. Their timely, well-managed control ensures stable yields and consistent grape quality.
Entomological grapevine problems—European grapevine moth
The European grapevine moth is considered the most significant insect pest in vineyards. The larvae of this moth feed on grape berries, causing direct damage and potentially leading to secondary fungal infections such as Botrytis. Yield losses may reach up to 40%, while grape composition and winemaking potential are negatively affected.
While the use of insect-protection products remains the primary method for controlling pests, modern viticulture increasingly recommends combining them with fatty acids and polyalcohol compounds. These substances enhance adhesion and persistence of the active ingredients on plant tissues, resulting in more efficient protection with fewer applications and reduced stress on the vines.
Fungal grapevine problems—Powdery mildew
Powdery mildew is one of the most challenging diseases in viticulture, especially in warm and humid regions. The pathogen forms a characteristic white, powdery coating on leaves and grapes, reducing photosynthetic capacity, delaying ripening, and worsening the fruit’s organoleptic properties.
Effective protection relies on combining fungicides with high-quality wetting agents to improve coverage and retention of the active substances on the foliage. Additionally, new-generation products containing amino acids stimulate plant physiological functions and support faster recovery of affected tissues.
The Scientific approach to modern vine protection
Excessive use of chemicals can cause oxidative stress on the vine and negatively impact the ecosystem. Today’s research focuses increasingly on strengthening the plant’s natural defensive mechanisms. This process is where biostimulants play a key role—products formulated with valuable bioactive compounds such as amino acids, natural plant hormones, and osmolytes.
These compounds activate phytoalexin production, increase chlorophyll concentration, and enhance nutrient uptake and utilization. Scientific vineyard studies have shown that regular biostimulant use can increase marketable yield by 10–15% and reduce pesticide inputs by up to 30%, supporting a more sustainable production model.
Orthosilicic Acid—Innovation for stronger plant tissues
Silicon is now known to be an important part of strengthening plant structure. In its stabilized, fully bioavailable form as orthosilicic acid, it becomes incorporated into cell walls, increasing vine resistance to mechanical stress such as wind and hail. It also acts as a physical barrier against pathogens, reducing fungal penetration. Vineyard trials have demonstrated a 25–40% reduction in powdery mildew severity following the application of orthosilicic acid, confirming its value in integrated grapevine protection programs.
AgriSC recommends…
HaifaStim biostimulants specifically enhance the entire plant support and nutrition system, resulting in improved plant growth and optimized soil fertility. The comprehensive plant care provided by HaifaStim™ biostimulants has a lower environmental impact thanks to specially designed, improved sustainability nutrition products.
HaifaStim™ Wall-Up S
HaifaStim Wall-Up S is a strong formula that helps plants withstand tough conditions, grow better, and become stronger by providing simple-to-use silicon and water-soluble chelated iron (Fe-EDTA and Fe-DTPA).
Benefits
- It enhances the mechanical strength of plant tissue, even under adverse growing conditions.
- Delays the aging of plant tissues
- It also helps prevent the loss of fruit.
- It enhances plants’ natural resistance to abiotic stress.
HaifaStim™ eNergy
HaifaStim™ eNergy is a plant growth aid-biostimulant with an intense lipid phase and high concentrations of free amino acids & peptides, biochemicals, and active organic compounds that accelerate the physiological growth processes of the plant and enhance fruit size immediately. The product enhances both flower development and fruit retention on the plant.
Benefits
- It promotes fruit development on the plant.
- It stimulates root system activity.
- It improves the plant’s energy balance.
- It increases production yield and improves uniformity and quality.
- Improves the plant’s resistance to abiotic stresses.
- Enhances chlorophyll production and photosynthesis.
- Enhances vegetative growth.