At the end of March, the rubber tree phenology, disease and insect pest monitoring and early warning and prevention and control in Yunnan rubber planting area

2.

(3) Honghe and Wenshan area

According to weather forecasts, in the next few days, the whole county will be mainly cloudy and sunny in the early days, and the temperature will be high.
There will be high-temperature weather above 35℃ in the valley area, and there will be basically no obvious rainfall process in the county; there will be one occurrence from April 3 to 5 The rainfall process may be accompanied by strong convective weather such as thunderstorms, strong winds, local hail, and short-term heavy precipitation
.
The specific forecast is as follows: April 1st to April 2nd, cloudy and sunny, with a temperature of 23℃～35℃; April 3rd is cloudy with thunderstorms, and the local area may be accompanied by short-term heavy precipitation, with a temperature of 21℃～29℃; 4 On April 4, there will be light to moderate rain and local heavy rain, with a temperature of 21℃～28℃; on April 5, there will be overcast with moderate to heavy rain and local rainstorm, with a temperature of 20℃～26℃
.

Three, prevention and control recommendations

1.
In the part of the forest section of the Jinghong area due to disease, the second leaf has been drawn, and the overall pathogenic base is large.
The recent temperature is conducive to the phenological process of rubber trees.
The light to moderate rain from April 4th to 6th is still It is conducive to the epidemic of powdery mildew.
Please pay attention to strengthen the monitoring of the second leaf, and if necessary, control the new shoot
.

2.
The phenology of Xuangang area in Mangshi is relatively late.
Recently, the temperature difference between day and night is relatively large, and accompanied by a small drop in temperature, it is conducive to the epidemic of powdery mildew.
It is necessary to strengthen monitoring and timely spraying; Lincang area has all been opened, so pay attention to pumping later.
Plant control and monitoring of scale insects and spider mites
.

3.
The prevention and control of powdery mildew in Jinping and Luchun areas has basically ended, but attention should be paid to the monitoring and control of anthracnose and insect (mite) damage; currently most rubber tree leaves in Hekou and Wenshan areas have tended to age, but there are still Part of the rubber tree phenology is in the susceptible stage.
While strengthening powdery mildew monitoring and prevention and control, attention should be paid to the monitoring of anthracnose, scale insects, and red and yellow spider mites.
If necessary, spray prevention and control in order to cut as soon as possible
.

4.
At present, in areas where rubber tree leaves are aging, prepare for the final disease investigation and cutting
.