The first spring spray of fruit trees: when, with what and how?
The first spring spray of seedlings: when, with what and how to keep plants healthy?
Spring is a new start for seedlings. After winter they may be weakened, while warmer weather awakens both buds and pathogens and pests. The first spring spray helps seedlings and young trees start the season cleanly.
Why is the first spray important?
It reduces overwintered disease inoculum such as scab, leaf spot and brown rot, suppresses overwintered pests and protects young, tender plant parts. The less inoculum remains at the start of spring, the easier the season is to manage.
When should you spray?
Spray in early spring when daytime temperatures are usually around +5 to +10°C, there are no strong frosts and the buds are still closed or just swelling. Spray according to the plant's condition and the weather, not the calendar.
What can you use?
- Copper preparations for preventive disease protection.
- Paraffin or mineral oils against overwintered pest eggs and larvae.
- Biological or natural products when a gentler approach is preferred, following the label and crop requirements.
Always follow the product label. It gives the dose, temperature, safety interval and compatibility information.
Seven practical steps
- Choose a calm day without wind or rain, preferably morning or evening.
- Make sure the temperature is suitable and does not fall below zero.
- Remove broken branches and lightly prune if necessary.
- Wet the twigs, buds and trunk evenly without creating run-off.
- Pay attention to the trunk and branch joints, where pests and disease can hide.
- Do not mix products unless the label confirms compatibility.
- Use gloves, eye protection and a respirator when recommended.
Common mistakes
Spraying too late, before rain, in cold weather or without measuring the dose can reduce the result or stress the plant.
A small Rojaus medelynas tip
For a small number of seedlings, a hand sprayer is often enough, provided it creates an even mist rather than large drops. Good coverage can matter more than an expensive product.
In conclusion
The first spring spray is an investment in an easier season, with fewer problems and stronger, healthier plants.