How to prevent pine seedling leaf blight

Pine seedling leaf blight (●Cereospora pini-densiflorae Hori et Nambu●)

The disease often develops gradually from the lower needles of the seedlings. The diseased leaves begin to appear yellow-brown spots, then expand into segmented spots, and wither to death, the color is dark, and many black spots are formed on the lesions. Although the leaves are dry, they do not fall off. If all the needles are infected, the seedlings die. In East China, pine leaf blight usually begins in mid-August, and it is prosperous from September to October. It gradually weakens after November. Diseases are most likely to be endemic in years when there is more rain.

Control methods:

Effective measures for raising seedlings should be taken to improve the environmental conditions, and the disease resistance of seedlings should be strengthened, supplemented by sterilization of pesticides, and the occurrence of diseases should be reduced or prevented. The specific measures are as follows:

1. In the nursery where the disease develops year after year, rotation should be carried out, and rotation of coniferous broad-leaved trees can reduce the disease. For nurseries that can only be used as continuous crops, the diseased seedlings should be completely removed in winter to reduce the number of pathogens.

2. Deep plowing in winter will bury the remnants of the diseased plants in deep soil, apply enough basal fertilizer, and pay attention to timely irrigation for drought prevention in the summer. It is best to divert water to the trails to infiltrate the seedbed.

3, grow dense seedlings, should be time and weak seedlings, so as to avoid the formation of disease centers, and make the seedlings grow robustly.

4, from the beginning of August with 1:1:100 ~ 200 (copper sulfate: quicklime: water) Bordeaux spray to prevent disease, spraying once every two weeks, the amount of 75 to 100 kg per mu; or Baume 0 .2 ~ 0.3 degrees of lime sulfur mixture, the same amount as above. The onset of the disease was controlled with a 50% thiotrexate 800-fold solution and the effect was significant.


GENREAL NAME:

Amprolium 20% water soluble powder

For Veterinary Use Only

COMPOSITION:

Active ingredients: Each 1g contains Amprolium Hydrochloride 200mg.

Excipents: Anhydrous glucose

DESCRIPTION

A white or almost white powder.

PHARMACOLOGICAL ACTIONS:

Amprolium have a role in variety of chicken coccidiosis, in which to Eimeria tenella and E.acervulina the role of the strongest type of reactor, for E. necatrix, E.brunetti, E. maxima and E.Nitis the role is weaker. Amprolium play a major role in the first- generation of propagules coccidia, prevent the formation of merozoites, the role of the peak in the first three days after infection. In addition, some inhibitory effect on sexual reproductive stage fg sporozoites. It can be used for prevention and treatment of coccidiosis. This drug is a vitamin B1 or thiamine structural analogue, 

TARGET SPECIES

Chicken, lambs and calves.

INDICATION

Amprolium Powder is intended for the prevention and treatment of coccidiosis in chicken and cattle

ADMINISTRATION AND DOSAGE

Usually administered as mixed water or mixed feed.

Chicken: 240mg amprolium hydrochloride per 1 liter drinking water for 5-7 days.

Lambs: 50-100mg amprolium hydrochloride/kg bodyweight daily for 4 days. By mixed feed.

Calves: 25-50mg amprolium hydrochloride/kg bodyweight, 1-2 times daily, for 5 days. By mixed feed or oral irrigation.

Disable the laying period.

CONTRAINDICATION

Do not administer to debilitated animals.

USE DURING PREGNANCY, LACTATION OR LAY

Suitable for use in pregnant and lactating animals.

Disable the laying period.

ADVERSE REACTION (FREQUENCY)

Toxicity is observed only at high doses. CNS signs are caused by thiamine deficiency, which may be reversed by adding thiamine to the diet.

CLINICALLY SIGNIFICANT DRUG INTERACTIONS

None.

SYMPTOMS AND TRENTMENT OF OVERDOSAGE

To treat amprolium overdose, thiamine should be administered parenterally or orally.

WITHDRAWAL PERIOD

For meat consumption: 7 days before slaughter.

STORAGE

Store in a tightly sealed container, protected from light, and at room temperature.

SHELF LIFE

3 years.

PACK SIZE

100g

DESCRIPTION OF PRODUCT AND PACKAGE

A white or almost white powder sealed with Aluminum foil bag, packaged in cartons.

NAME AND ADDRESS OF MANUFACTUER

Name: Hebei Kexing Pharmaceutical Co., Ltd.

Address: No.114 Changsheng Street, Luquan Development Zone, Shijiazhuang City, Hebei, China


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Hebei Kexing Pharmaceutical Co., Ltd. , https://www.kexingpharma.com