Fruiter decay ill common says the disease of smelly skin disease, sodden skin, disease that string together a skin, disease breaking through corrupt is waited a moment, this disease basically happens in go up into age knot fruiter, the orchard that weigh disease is ill scar again and again, limb is misshapen not complete, destroy garden phenomenon to happen from time to tome due to illness. The crop of this ill main harm has malic tree, pear tree, peach, walnut is cultivated, cherry, macaque peach.
Malic ulcer
Walnut ulcer is ill
Malic decay is ill
One, the account that cankered disease produces the fruiter
1, soil hardens
As a result of fertilizer of long-term and many use, used up soil not only inside organic qualitative, killed soil at the same time inside beneficial microbial bacterium, bring about edaphic granule structure to destroy, permeability is poor, soil hardens, root system breathes hard, fruiter nutrition circulates not free, root rot and dry corrupt disease happen in succession.
2, flood flooding
Especially big to earthy stickiness, catchment not the wall valley of free, flood flooding causes subterranean water level to rise, water invades underground, discharge the air in giving soil, hold air the position in soil, root system cannot breathe, time is too long and cause root system choking death.
3, fertilization is undeserved
Fertilization does not undertake according to season, premature or too late; Also do not grow according to the fruiter characteristics fertilizes, NPK one cannon; Fertilization too concentration, also do not pay attention to far and near and depth; Many use urea, 2 ammonium, fat without become thoroughly decomposed or the peasant family that contain antibiotic and hormone, cause plant diseases and insect pests to run rampant thereby.
4, hidebound
Do not increase investment strength, the inferior fertilizer with low-cost employ, let a fruiter live below hunger or half hunger condition, go to look focusing merely clip, pull branch and annulus to cut above, nutrition goes hard to fruiter main force and root system below, cause dry corrupt disease and root rot long treat do not heal.
5, use drug blindly
Hit medicine not to see weather, do not see part, do not treat condition, do not look deserve to compare, do not see quality, do not divide time, not alternant employ, the microelement in causing pesticide is exorbitant and toxic, manganese is for instance toxic cause thick skin disease.
6, the orchard is airtight
Ventilated and pervious to light the first job that is orchard management, also be carry qualitative synergism most postulate, airtight certainly will causes the orchard photosynthesis is abate, nutrition cuts off, plant diseases and insect pests is flush, fructification character is reduced, cankered disease is caused.
7, the fruiter suffers freeze injury
The method of prevention and cure with fruiter ill decay
Measure of specific prevention and cure:
Garden of seasonable Qing Dynasty, early spring has clear garden before tree body is budding, branch of annihilate decay ill disease, incomplete branch, dig divides tree of die in one's bed to center processing, with 60-100 of spirit breaking through corrupt spray of times complete garden is applied, exterminate limb surface bacteria and conceal to invade bacterium of catch a disease, reduce orchard bacterium to measure cardinal number. Come on relatively serious garden area, should be in winter, early spring garden of each Qing Dynasty one.
High concentration brushs work or gush limb: Cankered place, tree force is weak, have etiolation, hanged last year fruit is much, with former fluid of spirit breaking through corrupt or attenuant 5-10 times brush trunk 1-2 second, but at the same time answer match element of soil fertility flourishing, Wo Feng, organic silicon. Brush the limits when working to want to be more than ill spot or cut limits, cut gives a paragraph to brush. Brushing dry action is material of the microelement in be being offerred to establish system directly, high energy, germicide qualitative, repair cut, stimulative heal arrives since, conduct antiseptic action, still can serve as in those days reserve nutrient, participate in crop leaf of progress of loop, hurried, regain tree power.
