Root rot disease in cinnamon
In the rainy season, cinnamon seedlings are very susceptible to root rot. First, the taproot rots first, then the whole plant dies.
Prevention: make drainage ditches, if planted in low ground, make high beds. If this disease is detected, it must be removed immediately to avoid spreading. Can use lime powder or sulfur powder sprinkled on the bed to disinfect before planting.
Leaf wilt disease
Symptoms are when leaves appear yellow spots. If the disease spreads, the back of the infected leaves will turn purple, eventually, the leaves will turn yellow and then dry out.
Prevention: cut off the diseased leaves, and then spray with a solution of Bordeaux mixture
Pests of the cinnamon tree
Red longhorn beetle
Most of these species arise in the low light forests, they chisel branches with a diameter of 2cm or more. Infested branches often dry out and die, when there is a storm or strong wind, the branch is very fragile. When the disease occurs, it is necessary to cut down the damaged branches. Move the infected branches out into the forest to burn, or use sulfur to fume and kill all the big bugs in May and July.
The young worms often arise in the summer, the worms are red and use the proboscis to plug into the bark to suck the sap. Infested branches often die, and if the tree is severely damaged, the whole tree will die.
Prevention: Before worms arise, use lime to brush on the branches. When worms arise, use Duoc Ca powder, neutral soap, and clean water. Then mix in a ratio of 1: 1: 1, mixed into a colloidal drug. Note that spraying should be done in the early morning or evening to control pests.
Aphids often arise in the summer, they destroy the young leaves of cinnamon. If the leaves have aphids, they will turn yellow or curl and wilt.
Prevention: Use 6% drug 666 then diluted 200 times. Or you can use a combination of tobacco – soap – powdered insecticide. All in 1:1:1 ratio and spray on sunny days to aphids.
When the adult bugs appear, they will lay their eggs on the young fruit first, and the larvae destroy the seeds in the cinnamon. If the fruit is laid eggs by bugs, it will swell and not ripen. By the beginning of June is the larval stage of hatching and then the fruit will fall.