Fascinating Fact:
Red spider mites are very small and often cause pale speckling on leaves. They are more common in hot, dry conditions, especially under cover.
Garden pests are living things that harm plants by feeding on leaves, stems, roots, buds, or sap. Some pests are easy to see, like slugs, while others are harder to notice until the damage builds up. Plants in pots, greenhouses, and polytunnels can be more vulnerable because warmth and shelter help pests breed quickly. The best approach is to identify what is causing the problem, remove or isolate badly affected growth, and improve conditions so plants recover. Good watering, fresh air movement, and regular checks under leaves can prevent small issues from turning into a full infestation.
Key Terms
- Sap-sucking: Feeding by piercing plant tissue and drinking the juices, which can weaken leaves and stems.
- Infestation: When a pest becomes very common on a plant or in an area and causes noticeable damage.
- Biological control: Using natural enemies, such as predatory insects, to reduce pest numbers.
Frequently Asked Questions (Click to see answers)
What are the first signs of pest damage on leaves?
Early signs include small holes, ragged edges, sticky patches, curling new growth, discoloured spots, or leaf edges turning brown. Checking leaf undersides often reveals the cause.
How can I reduce pests in a greenhouse without spraying everything?
You can remove badly affected leaves, isolate infected pots, improve ventilation, keep plants well-watered, and introduce biological controls. Sticky traps also help monitor flying pests.
Why do pests spread faster when plants are in pots?
Pots can dry out quickly and plants may become stressed, which makes them easier targets. Also, plants are close together, so pests can move from pot to pot more easily.
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