Pest-infested masson pine forest
Carry out manual prevention and control
Forestry technicians provide technical guidance
Pine caterpillars
Suining Station, August 26 (Sub-station reporter Wang Weiqi correspondent Haishushan) On August 25, the pine forest on both sides of the S221 highway in Rongyan Village, Puzi Miao and Dong Nationality Township, Suining County, Shaoyang City, Hunan Province, roared and white smoke billowed, which was the professional staff of forestry pest control in Suining County spraying smoke agents in the forest to remove pine caterpillars.
Since the end of July, six ethnic minority townships along Suining County's provincial highway S221, such as Dongshan, Egong, Le'an, Zhaishi, Changpuzi and Guanxia, have successively erupted in pine caterpillar hazards, and the needle-like leaves of masson pine have been eaten, revealing the original dry yellow of the branches, and the supposedly lush mountain body is shrouded in a brownish green. Due to the outbreak of masson pine caterpillar infestation, the county's 11,000 acres of pine forests have lost their green "coat". According to statistics from the Forest Protection Station of the Suining County Forestry Bureau, the area of pine forests in the county that suffered from pine caterpillars this year reached 57,000 mu and became a disaster in local areas.
There are as many as 26 species of pine caterpillars in China, among which the frequent plagues are Masson pine caterpillar, oil pine caterpillar, larch caterpillar, Simao pine caterpillar, Yunnan pine caterpillar, etc. In Suining County, the main hazards are Masson pine caterpillar and pine poison moth. Masson pine caterpillars in Suining County in two generations a year, with young larvae overwintering, the following year after the stinging of the solar terms, the temperature rises, overwintering larvae began to go up the tree to nibble pine needles. Hu Weihong, head of the Forest Protection Station of the Suining County Forestry Bureau, told reporters that after the poisonous hairs on the pine caterpillar pierce into the skin, it will cause redness, swelling and itching of the skin, and if the sting is severe, it will cause dermatitis, headache fever and general discomfort. In 2011, Suining County had a relatively serious masson pine caterpillar disaster, which not only ate the pine needles of a mountain, but also poured into the homes of local people, affecting the lives of the masses.
In order to implement prevention and control in a timely manner, the Suining County Forestry Bureau actively raised more than 300,000 yuan of work funds, according to the distribution of insect pests to implement artificial ground smoke preparations, forest farmers do not need to bear any costs, and organized a professional prevention and control team of 36 people, 12 sprayers, divided into 12 groups to use avermectin and Suyunjin bacillus smoke preparations, the county's pine caterpillar infestation of masson pine prevention and control, in order to strictly prevent the spread of disasters, and strive to reduce the harm of pine caterpillars to a minimum. At present, the pine caterpillar disaster in Suining County has been controlled to a certain extent. Decontamination is expected to end in mid-September.