New Type of Preparation for Prevention from Plant Diseases

Description

Instructions: [1] The rotten, ulcer, gummosis and ringspot diseases usually happen to forest trees and fruit trees. These diseases are the key to do severe harm to the whole tree, and it is difficult to deal with both at home and abroad. The incidence of disease for these sick trees in our country reaches from *0% to *0%. The farm fertilizers are allowed to sell in the market as its incidence of cure reaches *6%, according to the standard issued by State Forestry Administration. While the incidence of cure of our "ShuLe" reaches up to *3.6%, whose efficiency is **0%. [2]The rotten disease, ulcer and ringspot originated from the cut part and the weak growing cortex invading the subcutaneous cortex, thus leading to the rotten and then cutting off the supply of nutrition, which causes the insufficient supply of nutrition and then the death of the whole tree. The gummosis originated from the flowing-out of the resin of the tree (usually caused by external injury and worms). [3]The harm brought by ringspot disease is severer, esp. for those coming down with this disease in early stage, although they don&#**9;t die, has long florescence and high rate of yielding and are vigorous in growing period, when they step into the ripening period, there are many dropping fruit. It usually results in low harvest, and trees will die considerably in later period. At present, not only mature trees, but also newly-planted ones have such a kind of disease. [4]Trees rejuvenation, there are lots of unidentified pollutants in the air causing weakness and death of trees, they badly need rejuvenation to strengthen their vigor. [5]"ShuLe" can speed up the cure process of the cutting injury and decrease the incidence of infection.