Class: Man-made injuries
Herbicide injury occurs after plants come in contact with herbicides.
Herbicide injury symptoms vary significantly between different crops and substances. However, the symptoms will usually include a rapid, sweeping change to most plants in the field in the form of deformed or distorted plant parts (especially newer foliage) and necrosis (seen on the tips or margins of leaves).
*Improper use: Applying off label brands, overdosing plants with chemicals, and applying concentrations that are too high.
*Splashes of sprayed applications and air drifts contaminate cultivated crops.
*Substances in the soil accumulate past a safe threshold.
There are no control measures; therefore, the focus should be on prevention.
Always read products labels and work in accordance to what is written on the product label.
Do not spray during windy conditions.
Never mix two substances unless it is written on the product label. Check chemical/s on a small amount of plants then wait a minimum of 24 hours to monitor for adverse effects before applying it to the majority of plants.
Caution and careful notice should be taken when using any plant protection products (insecticides, fungicides, and herbicides). It is the grower’s sole responsibility to keep track of the legal uses and permissions with respect to the laws in their country and destination markets. Always read the instructions written on labels, and in a case of contradiction, work in accordance to the product label. Keep in mind that information written on the label usually applies to local markets. Pest control products intended for organic farming are generally considered to be less effective in comparison to conventional products. When dealing with organic, biologic, and to some extent a small number of conventional chemical products, a complete eradication of a pest or disease will often require several iterations of a specific treatment or combination of treatments.