Ilex crenata Dark Green is a purely male variety of Japanese holly. It only flowers, but does not produce any fruit. That's why it's the ideal hedge plant for gardens with children. Just like with all Ilex crenata varieties, diseases only occur very rarely with Dark Green.
What diseases occur in Ilex crenata Dark Green?
Ilex crenata Dark Green can be affected by fungal attack, pest attack and chlorosis. To avoid these diseases, a well-drained location without waterlogging and with sufficient nutrient supply is important.
What diseases occur in Ilex crenata Dark Green?
There are not many diseases that affect the Ilex crenata Dark Green. If they occur, it is usually due to a poor location or too few or too many nutrients in the soil.
Primarily these problems can damage the Ilex crenata Dark Green:
- Fungal infestation
- Chlorosis
- Pest Infestation
Basically it can be said that the robust, evergreen shrub can cope well with diseases and pests if it is strong and in a favorable location.
Soil fungi damage the Ilex crenata Dark Green
Soil fungi appear when the location is generally too moist. Therefore, make sure that waterlogging never occurs. However, the holly must not become completely dry.
If the plant gives off a foul smell, you should look at the roots. Dead root ends and a whitish coating are signs of fungal infestation.
Watch out for pests
Infestation by spider mites can occur, especially in very dry locations. It can be recognized by the spots on the leaves. If the young leaves are still rotting and falling off, look at the undersides.
Control should be carried out using biological means such as ladybirds (€39.00 on Amazon), lacewings and predatory bugs.
Chlorosis causes the leaves to bleach
If the leaves bleach, become almost transparent and fall off, chlorosis is probably responsible. In this case the Ilex is too dark or the pH value of the soil is too high.
Yellow leaves when waterlogged
Ilex crenata Dark Green does not tolerate waterlogging at all. It reacts to this with many leaves turning yellow.
Tip
Ilex crenata Dark Green, like all varieties of Japanese holly, is very easy to care for. You should only give the Ilex some winter protection, especially if you have recently planted it.