Coral shrubs are actually quite resistant to diseases and pests. However, they can also be infested. Then quick action is important.
The exotic coral shrub is relatively insensitive. It sprout anew every year. So pests hardly have a chance. Occasionally, however, aphids, spider mites and whiteflies appear. But that's not a big deal, because you can drive the parasites away with various means.
The coral shrub is also hardly susceptible to diseases. However, care errors can lead to deficiency symptoms.
Pests on coral bushes
Take a close look when you water your coral bush so that you can quickly spot those pesky pests.
❍ Aphids:
Aphids sit on the leaves. They are actually very easy to spot. A good and effective immediate measure: spray the bush with the garden hose. Put potted plants in a garbage bag beforehand and pack them watertight so that no pests are washed into the soil. This will drive away the pests. Proven household remedies such as nettle manure (instructions for this here) and a soft soap solution also help against aphids. To do this, mix 500 milliliters of water with a tablespoon of spirit and a tablespoon of soft soap and spray the plant with it until dripping wet.
❍ Spider mites:
Spider mites are noticeable with a delicate, white web in the leaf axils and small yellow dots on the leaves. Nettle decoction also helps against them. As an alternative, you can also make garlic stock or onion stock. To do this, chop the onions or garlic, pour hot water over them and leave to stand overnight. Spray the plant with the decoction for several days in a row.
❍ Whiteflies:
You can recognize a whitefly infestation when the leaves turn yellow, dry up and finally fall off. A fungus can also form on the leaves. The so-called sooty mold appears with tiny black dots. Despite the name "white fly", the pest is not a species of fly, but a subspecies of thescale insects. You can combat adult whiteflies with yellow boards (e.g. available here). The tablets are coated with a sticky liquid and attract the parasites. However, the pests cannot be completely driven away. In addition to the adult flies, the larvae also damage the leaves. In addition, plants in the neighborhood are also endangered.
In the case of a severe infestation with whiteflies, the only option is to use chemicals. But then make sure you buy something bee-friendly.
Tip:
Spider mites, aphids and whiteflies have natural enemies: parasitic wasps, gall midges, lacewings and ladybirds love the parasites. So if you spot such insects in your garden, the pests have little opportunity to spread.
Diseases and care mistakes in coral shrubs
❍ Root Rot:
The coral shrub is resistant to most diseases. However, if the soil is waterlogged, root rot can occur. This is a fungus that causes the roots to rot. The result: the plant withers. To remedy the situation, you should dig up the shrub, completely remove the infested root parts and the soil and let the rootstock dry. Then put the coral bush back in place. Make sure the soil is well drained and create drainage in the pot.
❍ too much fertilizer:
The coral bush is also sensitive to too much fertilizer. Only use fertilizers in moderation during the flowering phase. Always mix liquid fertilizer with the irrigation water and never put it directly into the soil.