Disease powdery mildew (Oidium heveae) in rubber

Powdery mildew disease caused the death of the young leaves of the newly formed after the annual leaf fall. If the weather helps, the disease can cause leaf fall several times so that the plant was forced to form a green leaf over and over. As a result, plants become weak condition, decrease the production of latex, inhibits the development of girth and cause dead ends. The powdery mildew disease caused by the fungus Oidium heveae and fungus attacks the shoots (flush) and young leaves. Transmission of the disease occurs through spores are spread by wind, dew or rain water.

The symptoms of this disease are:
- Young leaves are aged 1-9 days if attacked wrinkled surface, the tip of the leaves dry up and eventually fall.
- While the leaves of the older (age 10-15 days) if attacked by the leaf tissue without spotting translucent, but the leaves do not fall. On the leaf surface appear white powdery colonies consisting of konodia and kinidiafor.
- If severe attack occurred in young leaves (1-9 days), the leaves will fall so the plants become bald.

Factors that affect this breed disease are:
- In contrast to other fungi in general, for the germination of spores of this fungus requires moist weather, but the leaf surface should be dry. Disease development was greatly assisted by a little rain, lots of sunshine and temperatures were rather low.
- Rubber plantation is located at an altitude of 300 meters above sea level, often under attack Oidium usually great.

So a few reviews of powdery mildew disease in rubber, may be able to assist the reader at this particular time or in the future.