Dichlorvos are very sensitive to stone fruits and kiwifruit. Sorghum and Chinese rose are sensitive to dichlorvos and should not be used. Corn, beans, melon seedlings and willows are also more sensitive and can not be diluted less than 800 times. Dichlorvos have obvious phytotoxicity on ornamentals such as plum blossoms, cherries, peaches, apricots, twigs, pears of the 20th century, and Beijing white pears. Usually, other types of insecticides should be used instead. Dichlorvos also have varying degrees of phytotoxicity to Rhododendron, taro, kiwifruit, sorghum, walnuts, and melons.

【Diptera】 Stone fruits and kiwifruit are very sensitive and are prohibited. Sorghum and beans are particularly sensitive and should not be used. Melon seedlings, corn, apples (Dawn, Marshal, and other varieties) are also prone to phytotoxicity to trichlorfon in the early stages. It has phytotoxicity effects on cherry blossoms, plum blossoms, apples and other varieties of Golden Delicious.

【Phoxim】Sorghum is not sensitive to spraying, and corn can only be used to control corn borer. Cucumber and beans were sensitive to the drug, 50% EC 500 times sprayed with phytotoxicity, and 1000 times liquid may also be slightly phytotoxic. Sugar beets are also more sensitive to phoxim. For example, when mixing and boring, the dose and boring time should be appropriately reduced. Sensitive to leafy vegetables at high temperatures, easy to burn leaves. Phosphorus and other organophosphorus pesticides have the mechanism of discoloration and other phytotoxicity. Hydrophobic organophosphorus pesticides are adsorbed by chloroplasts or their surrounding tissues, causing disorder of the chloroplast function and hindering the electronic conduction reaction, ie, the Hill reaction, inhibition. Photosynthesis, discoloration occurs, and the more severe the injury, the lower the carbohydrate content in the body, the relative increase in total nitrogen. 1 With the use of liquid medication, do not mix with alkaline pesticides. 2 The drug is easy to decompose when exposed to light. It is best to do it in the evening in the field.

Dimethoate and Omethoate Kiwifruit and ginseng fruit are particularly sensitive to dimethoate and omethoate and are prohibited. Crops such as hops, asteraceae, some varieties of sorghum, tobacco, dates, peaches, pears, oranges, apricots, plums, olives, and figs are sensitive to 40% dimethoate or omethoate diluted below 1500 times. Excessive use of peanuts will make the cotyledons not close at night and should be used before use. For plum blossoms, cherry blossoms, flower peaches, eucalyptus leaves, paste stems jellyfish, apricots, pears and other Rosaceae ornamental plants, can produce significant phytotoxicity, harm to the Aegerita family of shamrock flowers and coral flowers.

【Stone Sulfur Mixture】 Peach, plum, plum, pear, grape, bean, potato, tomato, onion, ginger, melon, cucumber, etc. The young tissues of grapes, peaches, pears, plums, plums, apricots, and other fruit trees are prone to phytotoxicity and should be used with caution. It is best to spray them in the deciduous season. Do not use them in the growing season or in the fruit and fruit period. For kiwifruit, grapes, cucumbers and leguminous flowers, there are certain phytotoxicity.

【Bordeaux liquid】potatoes, tomatoes, peppers, melons, peaches, plums, pears, apples, persimmons, cabbage, soybeans, wheat, lettuce, etc., are particularly sensitive to copper ions, peaches, apricots, plums, and hawthorns are more sensitive during the production season. Should be used with caution. When the lime in the Bordeaux mixture is less than the double amount formula, it is easy to produce phytotoxicity to apples and persimmons, and it is necessary to use the lime multiplication type; when the lime is higher than the double amount, the grapes are liable to produce phytotoxicity, and the lime semi-quantity is applied. For other tree species, different formulas and ratios should be selected according to their characteristics. For apples that are sensitive to copper and lime-tolerant, lime-multiple or multi-formula can be used. For pears that are less sensitive to lime and copper, equal proportions of lime can be used; lime-sensitive and copper-resistant The grapes can be mixed with half-caloric lime. When mixing with organic phosphorus, care should be taken to use it with mixing. Sprayed with lime sulfur for 10 days before spraying Bordeaux multi-liquid, sprayed Bordeaux mixture after 20-30 days before it can be sprayed lime sulfur mixture. 1 Avoid application on cloudy days or before the fog is dry to prevent phytotoxicity. Because of the strong permeability of copper sulphate, it is lime that is left by rain or dew. The remaining is copper ions, and the copper ion is highly corrosive, which can easily damage the leaves and young fruits. Summer spraying avoids the hot sun at noon so as not to cause damage caused by lime. Spray during the rainy season and increase lime dosage as appropriate. 2 can not be mixed with alkaline agents Bordeaux mixture with lime sulfur, thibetane, thiram, Fumei arsenic and other mixed use, or alternate use interval is too short, are prone to injury. 3 Bordeaux mixture should not be formulated in metal containers. 4 Bordeaux is toxic to silkworms and must not be used on mulberry trees. 5 with the use of. Bordeaux mixture preparation: First, dilute the copper sulfate solution into the milk of lime, and stir it side by side; second, dilute the milk of lime and the solution of copper sulfate and pour it into the stirred bucket and pour it into the bucket. Stir it. The preparation method is simple and convenient, and the prepared Bordeaux liquid has a slow precipitation and has a good protection effect after use.

Acetomethamine should not be used on mulberry or tea trees.

Triazophos Sugar cane.

[Chlorpyrifos] Tobacco.

【Phosphorus】Peach trees are sensitive and hanged.

[Phosphorus] In the conditions of excessive water and fertilizer, if the amount is too large, the maturity of cotton will be postponed.

【Monochrome】Sorghum is sensitive to this drug and should not be used.

[Isocarbophos] In the hot and dry season of 28-30 degrees Celsius, streaks appear on the fruit of citrus.

【Phoxim】 Seedlings of cruciferous vegetables, pears, peaches, cherries, sorghum, and hops are sensitive to the drug and are prone to phytotoxicity and should not be used.

【parathion and methyl parathion】Melons, especially seedlings sensitive to them, easy to produce phytotoxicity should not be used.

【Cetromethoxazole】 Cruciferae, corn and cabbage, rape, radish, broccoli, cabbage, vegetables, cauliflower and other cruciferous subjects are sensitive to the drug and are used with caution.

Malathion Some varieties of tomato seedlings, melons, cowpeas, sorghum, cherries, pears, and apples are sensitive to the drug and are used with caution.

The pyridazin cannot be used together with the 2,4-D herbicide. If the interval between the two drugs is too short, it is easy to produce phytotoxicity.

【Chalandan (Bataan)】Cultivated seedlings of cruciferous vegetables such as flowering stage, cabbage, and cabbage.

【Insecticidal double】Bruciferous vegetable seedlings such as cabbage and cabbage, cotton leaf spray. Beans, citrus fruit trees sensitive to them, can only use low concentrations.

【Insecticide list】Cotton, tobacco, green beans, potatoes, and some beans.

[Sung Ding Wei (Basha)] melon, beans, solanaceous crops.

[Isoprocarb] potato crops.

Carbaryl (West Vewe): Melons.

【Suppressed Taibao】 cabbage seedlings.

【Carbofuran】 can only be used as a rhizosphere, but it cannot be sprayed with water.

【Buprofezin】 Cabbage, Radish.

Imidacloprid beans, melons.

[Petroleum Emulsion] It is easy to produce phytotoxicity on some peach varieties and it is best to use them in the deciduous season. The enemy-dead insect (99.1% mineral oil emulsifiable concentrate) can be mixed with most insecticides and fungicides. It can reduce the evaporation of liquid medicine, increase the adhesion of pesticides and protect the varieties of insecticides susceptible to ultraviolet rays, and thus has a certain degree of Synergies. It can be mixed with avermectin, Bt, imidacloprid, enemy killing spirit, Wan Ling, can kill, copper and copper fertilizer and other agents mixed. However, this product can not be mixed with sulphur-containing agents, Bordeaux mixture, dimethoate, chlorpheniramine, carbaryl, chlorbenzuron, dandan, chlorothalonil, and dipyridamole. At the same time, it should also be noted that no more than 14 days after the spraying of pesticides on the fruit trees can be sprayed against the enemy, otherwise it will happen phytotoxicity. How to use it Add a certain amount of water to the container, add the required amount of enemy insects to the water, and then add enough water. If mixed with other pesticides, other pesticides and water should be mixed and then poured into enemy insects. In order to prevent the separation of the syrup, it should be constantly stirred. If oil emulsions are used in summer, some tree species will cause phytotoxicity, and they should be tested first.

【Lolly Mixture】 The use of pine oil mixture in the summer has obvious phytotoxicity to the persimmon, and the spring and summer season have adverse effects on the orange.

【Spine Mixture】 Deciduous fruit trees are very sensitive to them and should not be used during the summer growing season.

Mancozeb, tobacco, cucurbitaceae, certain pears. When mango pear small fruit mancozeb is easy to appear fruit surface spots. A high concentration will cause spots on the edges of rice leaves.

Topuzin should be avoided when preventing and treating kiwifruit pests and diseases. Can be mixed with a variety of pesticides, including alkaline agents, but not with copper preparations

Carbendazim can be mixed with general bactericides, but it should be used together with it. Can not be mixed with copper preparations.

Chlorothalonil is harmful to pears and persimmons and should not be used. It cannot be used within 20 days after the apple is dropped. High concentration of pesticides on pear, persimmon, peach, and plum

【Arsenic preparations】 Certain varieties of stone fruits, citrus and pear trees cannot be used. Most of arsenic is used in the dormant period of fruit trees and is not used during the growth period.

【Polysulfide Suspension】 High concentrations of polysulfide suspensions, etc. applied at high temperatures can cause citrus sunburn.

【Sulphur】Cucumber, soybean, potato, plum, pear.

Flusilazole Some pear cultivars are sensitive during the young fruit period (before May) and are not used.

【Copper oxide】fruit and young fruit period.

(Ke Laite) pear tree is disabled. Melon, bean and cotton seedlings below 25 cm are diluted no less than 3,000 times. Krypton has phytotoxicity on the young shoots of oranges and produces brown blotches. If the concentration is too high on the fruits, the use of doses that exceed the General Assembly will cause the fruit surface to produce yellow strips or irregular rings, affecting the appearance of the fruit. The use of drugs at high temperatures tends to cause sunburn and affects the chlorosis near the umbilicus. It is recommended that the amount of acetylene ester used in the fruit be 73% of EC not less than 2500-3000 times, and even less can be used in combination with oil emulsion, otherwise serious phytotoxicity will occur.

[Triazotin] 25% triazotin wettable powder will not cause damage to spring shoot leaf (low temperature), it will cause serious flowering, falling leaves, fruit drop, and will still cause serious damage in young fruit (temperature below 20°C). Leaves and fruit deformities. The use of a concentration of 1500-2000 times is preferable. Navel orange injury requires further testing.

[Triphosphorus Tin] 20% Triphosphorus Emulsion 500, 2000 times liquid has phytotoxicity to citrus shoots. The use of the drug in June had no effect on the peel of Citrus sinensis and Citrus sinensis. In mid-July, 500, 1000, and 2000 times were used to harm the fruits of the above two varieties to different extents, but in addition to 500 times after 50-65 d of the drug. In addition, there are still obvious symptoms on the fruit of Satsuma mandarin, and the symptoms of phytotoxicity of 1000 and 2000 times have basically disappeared, basically no effect on the appearance of the fruit. Before the fruit is harvested (especially the Wenzhou mandarin), it is best not to spray it for 50 days.

[Diclochloric acid] Citrus (equivalent to chlorine effect) can easily lead to injury after use. The light leaves are gray, and the heavy leaves are old (trichloromethylsulfone). Some varieties of hawthorn and apple are prone to produce phytotoxicity and should not be used.

[Gibberellin (920)] Orange is used during the flower protection period. If the concentration is not good enough, the fruit will become smaller, the skin becomes thicker, taste sour, malformed fruit, etc., and the yield and quality will be reduced.

Ciniconazole: Watermelon, soybean, and pepper (disease damage at high concentrations).

【Glyphosate and Gramoxone】 These two herbicides can only be directed to spray weeds between fruit trees and cannot be used on the leaves of fruit trees.

【Sodium tetrachlorine】 Broad-leaved crops, all kinds of fruit trees are hanged.

【Atrazine】 Peach is sensitive to it and should not be used. Atrazine has a long duration of effect and is harmful to sensitive crops such as wheat, soybeans, rice, and peaches. Can be solved by reducing the dosage and mixing it with other herbicides. Corn interplanting beans cannot be used.

Butachlor: The initial application of rice Honda caused brown spots.

【Acetochlor】Cucurbitaceae (cucumber, watermelon, gourd) spinach, leeks.

Metolachlor (doer)】 spinach, sorghum, rice, wheat.

【oxazole oxadol (Puma)] barley, oats, corn, sorghum.

Note:

Melons and legumes: They are sensitive crops. Dichlorvos, phosphine aluminum, chlorsulfuron, phoxim, dimehypochlor, and fentanyl should be used with caution in melon crops; legumes should be used cautiously with dichlorvos, Trichlorfon, Insecticide, Deficiency, etc. The pesticides used in the melon and legume crops can easily produce phytotoxicity, and it is best to replace them with other pesticides.

Corn: The use of pesticides or herbicides, over a certain concentration, can produce abnormally colored leaf spots, such as white spots or brown spots. The buds and roots are curled or thickened, the growth of the plants is inhibited, the temporal lobe is shortened or the grains are exposed. Excessive application of chemical fertilizers or excessive application of insecticides at seeding may inhibit seed germination or death after exhumation, and residual dwarfing 4 leaves may turn yellow or die off. Etiology: Excessive application of dichlorvos, trichlorfon, phoxim, kung fu, 2,4-D, and chemical fertilizers may cause the above symptoms. Excessive soluble nitrogen, potassium, and other fertilizers will inhibit seed germination or death from seedling emergence when they are close to seed; applying or drifting over 2,4-D will cause the leaves to curl into onion leaves and the lower stems and leaves cluster together. The aerial root volume does not come into contact with the soil; excessive application of phoxim can cause local or most of the leaves to whiten, causing the leaves to dry and freeze-like. The distribution and location of phoxim in corn were different, and the susceptibility to pesticides was also different. The root application in seedling stage was especially obvious.

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