Which pests can occur?
There are hardly any insects that appear as pests on a tree of life. Just that Leaf miner can become a real problem.
also read
- Can a sick thuja still be saved?
- Thuja comes in numerous varieties - a brief overview
- Recognize and fight the leaf miner on the thuja
If the shoot tips of the thuja are initially translucent and then brown, you should examine the tree for pests so that you can combat them in good time.
Recognize and fight the leaf miner on the tree of life
There are two types of leaf miners that infest the tree of life: the juniper leaf miner and the thuja leaf miner. The juniper moth flies in May and June, while the thujamin moth appears a little later from June to July. During these times, the pests lay their eggs on the thuja, which later develop into larvae and eat their way into the shoots.
Signs of leaf miner infestation:
- shoots initially translucent, later brown
- hollow inside (feeding tunnels)
- black dots on the tips (excrement deposits)
- small caterpillars in the tips
Fight leaf miners immediately
A healthy thuja usually handles a light infestation quite well. Cut Just generously remove the infected shoots.
If the infestation is very strong, there is a risk that it will spread to the entire hedge and cause the trees of life to die. In this case, you have to resort to a radical pruning and, if necessary, treat the thuja twice with the appropriate products from the gardening specialist.
Fungal diseases are more common
The death of instincts shows itself through brown tipswhich, however, have no feeding ducts inside. A fungal attack is usually caused by an unfavorable, excessively moist location.
By regularly thinning the thuja and keeping the distance between the plants not too close, you can prevent an infestation by fungi.
If possible, do not water from above as often and never in the evening, as the shoots then no longer dry off properly.
Tips
Brown tips of the thuja do not necessarily indicate a pest or fungal attack. Sometimes they're just dried up. The tree of life has to be more frequent, especially at the beginning poured, whereby waterlogging must be avoided at all costs.