A chestnut tree in the garden is a beautiful ornament. But what if chestnut leaf miner moths have taken root? Find out here how you can fight chestnut leafminers.
Do the leaves of your chestnut look eaten?
The chestnut has wonderful white to pink flowers and of course very beautiful leaves. But the best are the fruits that every child likes to collect in autumn. If the large leaves also change color, chestnuts look perfect in every garden. But be careful: If the leaves look withered or eaten early, then a pest is to blame, which is known as a chestnut leafminer.
Remove leaves thoroughly
The moth nests directly on the leaves and lays the eggs there. The larvae hatch and feed on the leaves. These injuries make the leaves susceptible to fungal diseases and die prematurely. Winter is also spent in the fallen leaves. Therefore, this should be thoroughly removed and thrown away, so never on the compost. There is no other precaution as there are no approved plant protection products. Whoever removes the leaves thoroughly ensures that the chance that the chestnut will be attacked again next year is very small.
Small pests - big damage
The chestnut leaf miner has been spreading in Central Europe for almost twenty years. The body of the chestnut leaf miner measures only five millimeters, but this small pest can do great damage. On average, females lay about 20 to 30 eggs on the top of the leaf. In the case of severe infestation, it can happen that there are 100 eggs on one leaf.