The latest course of techniques and methods for pest control of Clematis roxburghii

Anoectochilus roxburghii, also known as Clematis and Clematis, is a rare perennial Chinese herbal medicine of the genus Cymbidium of Orchidaceae. Because of its health care and medicinal value, Clematis is becoming more and more popular. How to prevent and control diseases and insect pests in the process of planting Anoectochilus roxburghii has also become an issue of concern to many farmers. let's take a look at the pest control techniques of Clematis.

Cataplexy

[characteristics of the disease] the quenching disease was mainly caused by Fusarium oxysporum, and a yellow-brown watery spot appeared at the base of the stem of the diseased seedling, which quickly developed to a week around the stem, and the tissue of the diseased part rotted, withered and shrunk in a linear shape. The disease developed rapidly, the seedlings fell down and died rapidly, and the phenomenon of stunning appeared.

[control methods] Comprehensive control or spray with 75% chlorothalonil wettable powder 600 times or 64% chlorothalonil wettable powder 500 times or 50% carbendazim wettable powder 600 times, see sporadic seedlings should be sprayed to improve the control effect, once every 7 days, 2 times 3 times.

Soft rot

[incidence characteristics] soft rot is a bacterial disease, which mainly damages the petioles of the middle and lower inner stems and leaves near the surface. In the early stage of the disease, it is difficult to detect, in the middle of the disease, brown necrotic spots appear outside the epidermis of about 3 cm of the stem base, and brown wet rot appears on the veins. The middle and lower leaves of the plant were yellow and wilted at high temperature. in the later stage, the whole plant wilted, upright and broken by hand.

[control method] spray 200 ml / L of new plant elements or 100 times of Nongkang 751 water agent, spray 14% ammonia copper solution 300 times before rain, after rain or watering, or 77% can kill 500 times of wettable powder, or 50% copper succinate sulfate 500 times of wettable powder.

Snails and slugs

[hazard characteristics] snails and slugs eat soft tissues such as root tips and buds, which seriously affect their growth.

[control methods] physical control of ①: set up an anti-insect net at the vents of the greenhouse to reduce the chance of pests entering the greenhouse. ② biological control: the use of bacteria, fungi, viruses, plant extracts, antibiotics and other biological pesticides to kill insects.