There are many diseases and pests in the seedling stage of cucumber, including cucumber damping-off disease, cucumber blight, cucumber root, cucumber root rot, cucumber downy mildew, anthracnose, fusarium wilt, Mannji disease, Sclerotinia sclerotiorum , whiteflies in the greenhouse, and Liriomyza sativae, tea locust and other pests and diseases, these pest control techniques are introduced as follows:

First, disease prevention and control:

1. Selection of disease-resistant varieties: Disease-resistant varieties mainly include: Wang Dongwang, Xintai Michong, Changchun Michong, Changli Mafang Campine, and Lele No.1.

2. Use aseptic new soil nutrients to cultivate acre: The fertile soil should be fertile aseptic soil, and 0.2 kg of 50% carbendazim or metalaxyl per cubic meter of nutrient soil can be used for sterilization.

3. Seed treatment: First, put the seeds in direct sunlight for 1-2 days, then soak 300 ml of formalin for 2-3 minutes, rinse with water and soak in warm water at 55°C, and stir continuously. When the water temperature drops to 30 °C soak 4-6 hours.

4. Disinfection of nursery sheds: a. Disinfection with 1000-times formalin liquor; b. Mix sawdust and sulphur half and mix to ignite the shed; c. Smoke shed with chlorothalonil.

5. The use of black-skinned squash for rootstock grafting can effectively prevent the occurrence of various soil-borne diseases such as blight.

6, temperature and humidity management: cucumber seedling disease is generally low temperature, high humidity disease, seedling management should create suitable for the growth of cucumber, is not conducive to the occurrence of ecological environment.

7. Chemical control: When cucumber grows to 3-4 leaves, use carbendazim, thiophanate-methyl, green-enriched No. 1 to irrigate or spray, spray it again before planting.

Second, pest control:

When cucumber infestation occurred during seedling stage, it was necessary to use medicines for prevention and treatment in good time. The agents with better prevention and control were: Decoction, Amy, Ake, Aketai and others.

Virus Specimen Collection Tube

Features
1. Medical grade polypropylene material, high transparency, high sealing and low temperature resistance;
2. With 6ml&10ml two specifications, the cone bottom can stand;
3. The thread structure design of the pipe cover ensures high sealing performance; the pipe cover has no O-ring external rotation design to reduce sample contamination caused by operation and storage;
4. It can cooperate with the sampling swab to perform the functions of collecting and transporting multiple types of samples such as viruses and microorganisms.

Applications

Used for the collection and transportation of clinical influenza, avian influenza, hand-foot-mouth disease, measles and other virus specimens, as well as mycoplasma, ureaplasma, chlamydia and other specimens.


Mixed sample tubes hold more swab heads, so the retention fluid capacity is often larger. For example, single swab retention solution is generally 3ml, 10 and 1 sample tube retention solution is generally 6ml, 20 and 1 retention solution is 10-12ml. The same amount of viral nucleic acid (e.g. 300copies) is stored in 3ml, 6ml, and 12ml copies in concentrations of 100copies/ml, 50copies/ml, and 25copies/ml respectively. Obviously, the greater the number of mixed tests, the lower the virus concentration, the higher the detection sensitivity will be required.
The more the number of mixed tests is, the contact surface between the swab head, the preservation solution and the tube wall will be doubled, which will lead to the increased probability of viral nucleic acid adsorption on other swab heads or tube wall. These factors all lead to higher requirements for system sensitivity.

Transfer Media Kit Collection Tube,Disposable Vtm Virus Tube,10Ml Virus Sampling Tube,Disposable Specimen Collection Tube

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