Most pesticides currently approved for use with UK apples will cause no problems of skin russeting, if applied according to the label recommendations.
- However, growers should take care when using tank mixes of several different products.
- Only use the tank mixes recommended by the manufacturers.
- Occasionally, applications of two or more products may cause russeting.
- This is often the result of incompatibility of the mixtures and/or enhanced uptake due to the combination of several surfactants.
- Adhere to label recommendations for pesticides, concerning rates, water volumes, compatible tank mixes and weather conditions, so as to avoid phytotoxicity damage and loss of fruit quality due to russeting.