Methods for controlling cotton bollworm:
Today's tip sharing: The control method of rhinoceros beetle: Why did my rose bud turn into this kind of green plant flower planting content, and the following is a comprehensive introduction.
In the previous articles, methods for controlling rose aphids and red spiders were introduced. I wonder if everyone has learned them?
Yesterday in the rose sharing group, a flower lover asked such a question:
The rose bud was growing well, but it was bitten by an unknown insect?
Seeing this question, it was a real wake-up call. The previous series of articles have already taught everyone how to keep roses alive. Now it's the season for the buds to bloom, of course, protecting the flower buds has become the top priority!
So let's talk about the two nasty little guys that can damage our rose buds.
Methods for controlling cotton bollworm:
Firstly, the Green Plant Enthusiast Network will discuss the problem encountered by rose group members, which is obviously caused by insects. Then, what kind of insect is it?
It is the rhinoceros beetle!
The rhinoceros beetle got its name because its feeding mouthparts resemble an elephant's nose and is an insect that mainly harms cotton.
There are many species of rhinoceros beetles, with more than 60,000 known species. The harm caused by rhinoceros beetles to roses is mainly to the flower buds.
Before laying eggs, the rhinoceros beetle will make a tubular hole or a transverse row on the bud and then lay eggs inside randomly, causing the bud to be incomplete or even wither.
Methods for controlling rhinoceros beetles:
Rhinoceros beetles are mainly captured manually. If you frequently spray insecticides such as dinotefuran and Bacillus thuringiensis, it can prevent infestations.
In addition to rhinoceros beetles, there is another small insect that also likes to damage our rose buds, which is also a common pest on cotton.
It is the cotton bollworm!
Cotton bollworms are most frequently found in cotton-growing areas of the Yellow River and Yangtze River basins in China. Their main harm is to eat flower buds, flowers, and also young leaves.
Cotton bollworms not only like to eat cotton buds but also enjoy rose buds.
Cotton bollworms are most prevalent from September to October every year. The larvae will bore into the side of the bud, eat the bud, and cause the rose bud to be incomplete.
Methods for controlling cotton bollworms:
During the peak season of cotton bollworms, frequent spraying of dinotefuran can prevent infestations. Usually, look for tiny white or black eggs at the top of the bud.
If eggs are found, eliminate them promptly. When cotton bollworms are found, control measures can be taken using emamectin benzoate, flubendiamide, cypermethrin, or BT preparations.
Although mentioned as two big guys, actually among the common pests of roses, there is a small insect that we often don't see. It can be said that it is like a dragon that shows its head but not its tail, but its harm to our roses is significant and should not be ignored.
Do you know what small insect the Green Plant Enthusiast Network is referring to? Feel free to leave a message below, and the Green Plant Enthusiast Network will reveal the answer tomorrow.
The above is a detailed explanation of the control methods for rhinoceros beetles and cotton bollworms for reference and suggestions only!