Methods for Controlling榕树 (Banyan) Heart Borer
Today, the editor will introduce you to some small experiences in green plant maintenance regarding the control methods for the榕树 heart borer. Let's get to know more together.
Methods for Controlling榕树 Heart Borer
The heart borer is the archenemy of the banyan tree. It bores into branches or tree trunks to feed. If not controlled in time, it can easily cause the plant to die. Once we find heart borers in the tree, we must promptly use chemicals to eliminate them thoroughly. Commonly used chemicals for eliminating heart borers include dichlorvos, trichlorfon, and thiacloprid. For best results, it is preferable to use an injection method.
Symptoms of榕树 Heart Borer
The heart borer is the larva of the banyan tree stem borer. It bores into the trunk, causing the trunk to break and the upper part to wither. The larva is white with a light yellow head and a body length of 15-17 millimeters. The adult has wings, a black body, and a yellow underside. The pupa is red. It usually occurs once a year, causing harm from May to June, overwintering in the stem, and is a significant pest.
Harm caused by the heart borer: The heart borer is the archenemy of the banyan tree. It bores into branches or tree trunks to feed. If not controlled in time, it can easily cause the plant to die.
Effective Chemicals for Controlling榕树 Heart Borer
Once heart borers are found in the tree, it is essential to use chemicals to eliminate them promptly. Commonly used chemicals include dichlorvos, trichlorfon, and thiacloprid. For better results, the injection method is recommended.
Methods for Controlling榕树 Heart Borer
1. If growth stops or borings are found, inspect promptly. If heart borer damage is confirmed, cut off the upper part from the bore without damage, and remove and kill the larvae.
2. During the larval stage, spray 1200-1500 times稀释 of dichlorvos emulsion, or 1000-1500 times稀释 of 50% phoxim emulsion, or 2500-300 times稀释 of 20% cypermethrin emulsion to eliminate them.
3. Before September to October each year, apply a 20-30 times稀释 of chemicals such as dichlorvos, trichlorfon, and thiacloprid to the areas where heart borers lay eggs for good results.
4. After the first generation emerges from overwintering in May, spray 1000-1200 times稀释 of 50% fenvalerate emulsion to eliminate the adults.
5. If the heart borer has already bored into the tree, mix dichlorvos and malathion emulsion 5-10 times稀释, soak a rotten cloth strip or cotton cloth, and insert it into the boring.
The above is the complete content for controlling the榕树 heart borer. Green plant enthusiasts may refer to these methods for reference.