First of all, let's learn about the common diseases and insect pests of elderberry.
Spot and gray spot are common diseases of elderberry. The symptoms of the disease are round spots on the leaves, brown on the outside, gray on the inside, and small black spots on the surface. The symptoms of gray spot disease are round or oval spots on the leaves, brown in the whole, light in the middle and deep in the outside.
The main pests of elderberry are cicadas, aphids of Oriental elderberry, foot moth of elderberry, moth of leopard, moth of redhead.
For the treatment of spot disease, chlorothalonil wettable granules or carbendazim visible granules can be used in proportion and multiple to effectively prevent and control, and grey spot disease is also applicable. The prevention and treatment of the two diseases are once a week, in the treatment of 3 to 4 times there will be improvement.
For different insect pests, different drugs should be selected. For example, for the harm of the transparent and sparse wax cicada, the imidacloprid wettable powder should be used for prevention and control; for the harm of the leopard moth and the red moth, the diflubenzuron suspension should be used for prevention and control. For the elderberry tail ruler moth to divide into the insect and the larva stage different control.
