First, the treatment method of gardenia aphids Gardenia is very vulnerable to pests and diseases, the main pests and diseases are aphids. Aphids will do harm to the roots and leaves of gardenia, and if not treated in time, it will endanger the safety of the whole plant. How does Lord Gardenia handle it? First, let's look at the treatment of aphids.
1, first onset
When gardenia first suffers from aphid disease, it is easy to deal with it in small quantities. Wash it directly with clean water, or wipe it off with a rag, or manually remove insects. But it must be cleaned up, otherwise it will continue to recur or spread.
2, the middle stage of the disease
Aphids have strong reproductive ability and rapid development. When the number of aphids is large, the above method is not applicable. This is to cover the whole plant with a sealed bag, which should be large and not touch the branches and leaves; After covering, light the mosquito-repellent incense at the bottom, put the cigarette into the bag, and put out the mosquito-repellent incense after a few minutes; Wait for the aphid to smoke for a while, take off the bag and it will go out.
It can also be killed by drugs, that is, spraying diluted trichlorfon, which can be disposed of at a very low concentration; Too high a concentration will burn the leaves.
Second, the treatment method of gardenia scale insects
If gardenia suffers from soot disease, it is usually caused by scale insects and aphids. The method of killing aphids is introduced above, and now we will teach you how to deal with scale insects.
First of all, gardenia should always be kept in a cool and ventilated place, and the flowerpot for cultivating gardenia should drain quickly, so as to prevent pests and diseases, which is what we usually call prevention.
Secondly, in the early stage of the disease, chlordane wettable powder or gram wettable powder can be sprayed to eliminate scale insects.
Finally, when gardenia scale insects are serious, the whole plant will be covered with smoke and dust, and lime powder can be sprayed in spring to remove pests and diseases; In other seasons, diluted liquid turpentine or liquid oil emulsion can be sprayed to kill insects.
Third, the processing method of gardenia red spider
How to deal with the problem of gardenia pests? If the leaves of gardenia turn yellow and the plants are listless, it is estimated that it is caused by spider disease. At this time, it is necessary to check the back of the gardenia leaves to see if there are spiders. Spiders usually hide behind the leaves and suck the juice of the leaves. How to treat red spider disease?
1, protection
Keep the gardenia at a suitable temperature, neither too high nor too low. Spiders generally like to grow in high temperature environment. When the temperature is high in summer, pay attention to shading gardenia, spraying water on leaves to cool down, and not giving spiders a chance to survive.
Step 2 deal with
.
If red spiders are found behind gardenia leaves, wash them with clear water immediately; You can also spray it with cigarette butts soaked in water, or spray it with diluted dimethoate, which can be effectively removed.
Conclusion: Gardenia jasminoides Ellis has suitable temperature and humidity in southern China, which is beneficial to reproduction. Flower friends should pay attention to the occurrence of pests and diseases in the maintenance stage and take preventive measures in time.