CN103651007A - Orchid stalk rot prevention method - Google Patents

Abstract

The invention belongs to the technical field of orchid disease and insect pest prevention, and particularly relates to an orchid stalk rot prevention method. The method includes the following steps that orchids are coated with wound healing agents after plant division, and meanwhile, carbofuran insecticides are fertilized in soil so as to prevent pests in the soil from biting pseudobulbs and causing infection; infected plants are found, flowerpots are turned over immediately for examination, symptom sources are found out, and the infected plants are cut until the pseudobulbs are white; some infected plants which seem to have no focuses at first glance must be thrown away because the pseudobulbs have already be infected; original plant materials and pots used by infected seedlings can be used after being sterilized before planting; once the plants get ill, orchid seedling plants left after cutting are soaked in stalk rot prevention agents with the 500-fold concentration for one day; after being soaked, the plants are dried until no water exists on the surfaces of the plants, the plants can be planted, the plants need to be watered once a day with the 500-fold agents for three consecutive days .

Description

Orchid stem rot is prevented and treated method

Technical field

The invention belongs to orchid techniques of pest control field, especially relate to a kind of orchid stem rot and prevent and treat method.

Background technology

Stem rot is harm orchid the most serious disease, once orchid is infected, as mishandling, gently basinful withered, heavy jeopardize whole blue garden orchid and grow.

Stem rot claims again fusarium wilt, blight, and its cause of disease is Deuteromycotina Fusarium oxysporum.Onset peak is in the annual 5-9 month, and morbidity the earliest can appear at February.To be blue seedling leaf start jaundice from base portion to the classical symptom of morbidity, and then from top to bottom, from inner and develop rapidly outward, often fragrant thoroughwort thirst with regard to withered and yellow in short 1-2 days, and as touched with hand, whole strain fragrant thoroughwort can fracture from the finger ring of petiole.Now, if fall basin, can find that the root system of disease seedling is still excellent, even also have crystal head to exist, the sprouting sending is then also intact.If but cut the soccer fraud stem of disease seedling, and can find that soccer fraud stem inside has become brown, even rotten.Continue down cutting and also can find, blade face is emerald green seems intact seedling, can fall ill down careless sooner or later.The propagation of visible this disease has disguise.

Easily there is this disease in the conditions such as hot and humid environment, plant hardened, improper ventilation.Germ mainly survives the winter in soil with mycelium and akinete, and next year is as just infecting source.Band soil bacteria is propagated disease because turning over basin soil removal and replacement, and germ is invaded from plant root wound and root hair cell, infects vascular bundle the amount reproduction of blue strain, finally stops up plant water transport channel, causes that plant dehydration is dead.The fragrant thoroughwort that infects stem rot is all withered and yellow from base portion, progressively makes progress, whole strain dehydration, until have Huang to turn brown, finally withered.

Summary of the invention

The problem to be solved in the present invention is to provide a kind of orchid stem rot and prevents and treats method, to reduce the ill probability of orchid or to obtain after morbidity in time, effectively control.

For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of orchid stem rot is prevented and treated method, comprises the following steps:

A. after orchid plant division, smear immediately Wound-healing agent, meanwhile, for the insect of prevention in the soil soccer fraud stem that bites causes infection, in soil, discharge Furadan insecticide;

B. finding diseased plant, should turn over immediately basin inspection, find out symptom root, is white until switch to soccer fraud stem; Some sick seedling is not almost found focus at first view, but soccer fraud stem infects, must throw away; During excision diseased plant, notice that every partial application will be with burning a cutter, in case infect;

C. original used material and the basin tool of planting of the seedling of falling ill, will be by blue basin before again planting, plant and expect to use after sterilization;

Once d. orchid morbidity, should be immersed in the blue seedling complete stool staying after excision diseased plant in stem rot control special agent, concentration is 500 times of liquid, soaks the time; After immersion, dry in the shade and anhydrously to surface can go up basin, after upper basin, still use 500 times of liquid medicament continuous pourings 3 days, once a day, just enter normal preventing and controlling later;

E., after getting warm again after a cold spell the beginning of spring, with orchid stem rot control special agent, prevent, continuous pouring 3 times, week about once, concentration is 500-1000 times of liquid.

Advantage and good effect that the present invention has are: owing to adopting technique scheme, improved the effect of orchid stem rot control, improved the quality of orchid, reduced the economic loss that orchid stem rot is brought.

Embodiment

In order to understand the present invention, below by specific embodiment, the invention will be further described.

The wound that orchid plant division causes is very large hidden danger, preferably after plant division, smears immediately Wound-healing agent.Meanwhile, for the insect of prevention in the soil soccer fraud stem that bites causes infection, can in soil, discharge Furadan insecticide.

Finding diseased plant, should turn over immediately basin inspection, find out symptom root, is white until switch to soccer fraud stem.Some sick seedling is not almost found focus at first view, but soccer fraud stem infects, must throw away.During excision diseased plant, notice that every partial application will be with burning a cutter, in case infect.Planting that morbidity seedling is original used expected and basin tool.Again will be by blue basin before planting, plant material and use after sterilization.

Supporting blue environment ventilation will get well, and blue basin should not be placed overstocked.Once orchid morbidity, should be immersed in the blue seedling complete stool staying after excision diseased plant in stem rot control special agent, concentration is 500 times of liquid, soaks the time.After immersion, dry in the shade and anhydrously to surface can go up basin, after upper basin, still use 500 times of liquid medicament continuous pourings 3 days, once a day, just enter normal preventing and controlling later.

After getting warm again after a cold spell the beginning of spring, with orchid stem rot control special agent, prevent, suggestion continuous pouring 3 times, week about once, concentration 500-1000 times of liquid.Prevention for the first time also can be with the method for soaking basin, continuous dipping one day or longer.An interval pouring in month later once, can longer pouring interval time after 8 months.Note making can not rinse with clear water after with medicament simultaneously at every turn.If generally adhered to, after 2-3 is used, no longer fall ill and can discontinue medication.

The present invention is not limited to above-mentioned preferred forms, and other any or akin products identical with the present invention that anyone draws under enlightenment of the present invention, within all dropping on protection scope of the present invention.

Claims (1)

1. orchid stem rot is prevented and treated method, it is characterized in that, specifically comprises the following steps:

A. after orchid plant division, smear immediately Wound-healing agent, meanwhile, for the insect of prevention in the soil soccer fraud stem that bites causes infection, in soil, discharge Furadan insecticide;

B. finding diseased plant, should turn over immediately basin inspection, find out symptom root, is white until switch to soccer fraud stem; Some sick seedling is not almost found focus at first view, but soccer fraud stem infects, must throw away; During excision diseased plant, notice that every partial application will be with burning a cutter, in case infect;

C. original used material and the basin tool of planting of the seedling of falling ill, will be by blue basin before again planting, plant and expect to use after sterilization;

Once d. orchid morbidity, should be immersed in the blue seedling complete stool staying after excision diseased plant in stem rot control special agent, concentration is 500 times of liquid, soaks the time; After immersion, dry in the shade and anhydrously to surface can go up basin, after upper basin, still use 500 times of liquid medicament continuous pourings 3 days, once a day, just enter normal preventing and controlling later;

E., after getting warm again after a cold spell the beginning of spring, with orchid stem rot control special agent, prevent, continuous pouring 3 times, week about once, concentration is 500-1000 times of liquid.