The Xinglong Mountain Nature Reserve Management Center invited an expert group from the Provincial m88 best betting website Inspection Station to conduct an investigation into the causes of coniferous tree species withering

8Month 28th，The Xinglong Mountain Nature Reserve Management Center invites relevant experts from the Gansu Province m88 best betting website Pest Control and Quarantine Station，Conducted an on-site investigation into the phenomenon of yellowing of some coniferous forests in our region。

The expert group inspected the original green pagoda forests in Dongshan Scenic Area and Qingshitou Valley、Growth status of spruce forest species and causes of yellowing。Based on field visits，After diagnostic analysis，The expert group believes that pine trees are turning yellow and the growth of pine forests is weakening，The main reasons are: First, the growing environment is dry and lacks nutrients。Due to the drought in the reserve in the past two years，Effective rainfall is too low，In addition, the density of forest trees is high，Trees do not get the nutrients they deserve for a long time。Second, needle drop disease appears in some pine forests，leading to greenness、The spruce forest is declining。Aiming at the causes of needle drop disease and yellowing of pine trees，The expert group put forward relevant prevention and m88 best betting website suggestions。

In recent years，Under the business guidance of relevant units of the Provincial Forest Inspection Station，Our center insists on "prevention first、The governance concept of “Scientific Governance”，Follow "diligently monitor、Early detection、Requirements of strict control，Do a good job in m88 best betting website plant quarantine work，Strengthen monitoring and forecasting，Increase monitoring frequency，Timely grasp and control the occurrence of forest pests。And strictly follow the relevant technical requirements of superiors，Highlight the key points，Classified policies，Review the discovered diseases, insect pests and abnormal growth of forest trees，Take effective prevention and control measures as soon as possible，Ensure the achievement of prevention and control goals，Guarantee forest resources and ecological security。

Contributed by: Pest m88 best betting website and Quarantine Department Reviewed by: Chen Yuping Editor: Zhang Jian