In addition to meat, the most troublesome of the faithful of various diseases, as well as pests. The first is the scale insects, there are more disgusting black fly, as well as aphids, black fly incidental, as well as nausea mysterious gray dish larvae, even caterpillars, slugs, snails, etc., hereinafter OF Yeah nodded grinning, a more detailed description Succulents common pesticides and use.

I have seen a lot of talk about how the insecticide posts. Some described the habits of a variety of pests, from habit to start to deal with them, and some sort a lot of earth, natural, nontoxic; some from with soil, paving, planting methods to prevent expulsion pests. Each was really brilliant idea, admirable.

However, I found few articles devoted to insecticide, and perhaps other big God feels toxic pesticides, can not to do, so it is not recommended not introduced. I also very much agree not to use pesticides as much as possible, but in order to protect our beloved easily hundreds sometimes thousands of more meat, insects can not be immortal, so drugs can not say. I will detail in this article is to deal with these insects drugs, rather than how to deal with. Part article talking about theory, impatient friends can begin to see the specific presentation start in the middle of the drug, but can not see the top half of yo.

What are pesticides should not do more to explain. There are many ways of classification of pesticides, in effect here only by way of classification, can be classified as:

Stomach poison. After the insect population into its toxic effect from the digestive system.

Contact insecticide. After contact with the skin or appendages penetrate worms, wax worms or corrosion layer, or a blockage valve and kill pests.

Fumigant. The vapor kill pests or pathogens occur use volatile gases, liquids or solids toxic.

The absorption of pesticides. Absorbed by plant seeds, roots, stems, leaves and transporting to the whole plant, in a period of time, the original or its metabolite with activated plant tissue or sucking insects feeding on plant sap and into the parasite, from the toxic effect.

Suction pesticides (a) within Overview

The mode of action of insecticides against pests mainly tag, stomach poisoning, fumigation and the absorption of several in which insecticide is first absorbed by the plant, conducted to pests site, and then to kill the pests by feeding pests. Therefore, insecticides compared to other types of pesticides, has many advantages and characteristics.

Easy to use, saving time and labor medicine

There are many within the Vinca insecticide longer be administered once a month insecticidal effect can be maintained. Spray not necessarily require very thoughtful, root and stem part of the drug can be absorbed through as long as the plant is conducted to the whole plant, not only saving labor and time-saving drugs.

But pay attention to most insecticides are highly toxic to humans and animals and residues is large, the use of particular attention. The processing edible object, you must consider the safety interval and post-harvest pesticide residues and other issues after application. There can not be mixed with live bacteria.

2. apply insecticide within the plant sap sucking pests, which can be used to control those hidden in the shade of pest damage, such as the surface of leaf aphids, spider mites and the like. When aphids and other sucking insects draw the sap plant, the liquid on with the plant juice into the insect body, thereby killing the pests. From this perspective, the absorption of insecticide mode of action also is stomach poisoning.

Also note that some agents can only penetrate into the skin and not the crop in crop vivo transduction, agents infiltrated the inner surface of the blade from the leaf surface of leaf aphids can kill. Because the agent can not be transported to another leaf from the leaves go, for there is no significant drug on this leaf insect has no effect. This effect is called the agent action within the infiltration. Only agents with internal bleeding effect can not be treated as the absorption agent, when spraying spray thoughtful certain requirements.

3. affected by precipitation

As heavy rains shortly after application, contact pesticide susceptible to rain erosion loss, both chemical and waste pollution of the environment; and insecticide plant because it is easy to penetrate into the body, almost free from the impact of rain erosion.

4. The scientific use, improve efficiency

The suction effect through leaf absorption, stems and roots absorb absorb a variety of ways, so the absorption agent diversify the mode of administration. General IRRIGATING and root uptake by soils when mixed with earth way, the suction effect of the leaf blade, mainly through spraying. In general, you can spray the medication can IRRIGATING powder can be mixed with soil.

Currently found in the insecticide, the majority is to plant the upper conduction mainly referred to as "the top of the conduction effect." Insecticide-treated blades within few down conduction, sprayed on plant leaves insecticide inside, if uneven, often can not get the desired insecticidal effect. Therefore, within the not absorbing agents can freely spraying, should also pay attention to the quality of spraying. We need to decide when spraying pesticide use time based on physiological characteristics of plants. One day the plant respiration differences before and after sunrise respiration strongest, and therefore, the processing plant before and after sunrise, easier to play its role within the suction, to achieve satisfactory control effect.

Suction (b) within the conductivity types of pesticides and detailing

The uptake of pesticides varieties belonging to organophosphorus, carbamates and neonicotinoids variety of organic nitrogen more. The absorption of organic phosphorus pesticides most species are highly toxic, because there are many varieties of toxicity is too high, or too long residence time is prohibited, such as the absorption of phosphorus. In recent years, it was eliminated five organophosphorus species have high *** methamidophos, monocrotophos, phosphamidon three varieties of insecticides. Meanwhile, in recent years to promote the use of low-toxicity pesticides several varieties, imidacloprid, fipronil and other insecticides also.

I only introduce low-toxic drug during several single recipe. The reason to separate out the priority introduction, because these drugs are approved by state certified pesticide formulations production, proven. Regardless of toxicity under the premise, compared to Taobao many ringing on the proliferation of pesticides, these but more formal.

1. insecticides

Imidacloprid (low toxicity)

Imidacloprid has a low toxicity, broad-spectrum, high efficiency, low-residue, pest resistance is not easy for people, animals, plants and natural enemies of security features, and there are multiple roles tag, stomach poisoning and the absorption and the like. The residual period of up to 25 days or so. Efficacy and was positively correlated with temperature, high temperature, good insecticidal effect.

The main forms: 10% WP, 70% WDG, 5% EC, 20% soluble liquid, 15% effervescent tablets, 25%, 48% suspensions and the like.

Dosage: The product description shall prevail.

Control target: mainly used to control sucking mouthparts, such as aphids, mites, scale insects, wireworms, beetles, moths and so on.

Precautions:

① must not be mixed with alkaline pesticides or substance.

② non-contamination during use beekeeping, sericulture establishments and related water.

2. organophosphorus insecticides

Dimethoate (poisoning)

Dimethoate is broad-spectrum insecticide, miticide. Dimethoate was moderately toxic pesticides in insects oxidized to highly toxic omethoate.

The main forms: 40% EC, 1.5% powder.

Dosage: spraying, IRRIGATING, 40% EC shall prevail, 2000-3000 times.

Control target: suitable for controlling a variety of crops on sucking pests such as aphids, spider mites, leafhoppers, whiteflies, leaf insects and some Kuwana class, mites.

Precautions:

① In case of fire, combustible high fever. Heating decomposition and emit phosphorus, sulfur oxides and other toxic gases.

② more stable in an acidic solution, rapidly hydrolyzed in alkaline solution, it can not be mixed with alkaline pesticides.

③ with strong oxidant chemical reaction can occur in contact.

(Additional) oxygen dimethoate, omethoate case of highly toxic pesticides, it is not recommended.

3. Organic nitrogen pesticides

Bisultap (poisoning)

Bisultap, also known as the insecticide Dan, is an efficient, low residual organic nitrogen pesticides, insecticides belonging nereistoxin is a nerve agent, on the pest has strong contact and stomach action and both certain fumigation and Ovicides, has a strong suction effect. Moderate toxicity to humans and animals, low toxicity to aquatic organisms. Mucosa, no significant skin irritation. No teratogenic and carcinogenic, mutagenic effect.

The main forms: 18%, 25%, 30% water, 45% soluble powder, 3.6% of large particles and the like.

Dosage: spraying, IRRIGATING, 25% water subject to water 600-800 times.

Control target: not too concerned about the control object, for lice, aphids, scale insects (scale insects), lepidopteran caterpillars and other insects and their larvae are valid.

(Additional) monosultap, monosultap double insecticidal similar varieties, nature, mechanism of action, control objects are the same. Bisultap is double sodium, Monosultap is monosodium salt. Is not commonly used, not much to do introduction

4. Carbamate insecticides

Carbosulfan (poisoning)

Is a moderately toxic insecticide miticide, it is one of the varieties of low toxicity carbofuran, a highly toxic pesticide carbofuran is one of the ideal alternative species. Metabolism in insects toxic insecticide carbofuran play the role. Moderate oral toxicity, dermal toxicity is low, no cumulative toxicity, no deformity, carcinogenic and mutagenic. Its lethality strong, quick, has a stomach poison and contact action. Features are fat-soluble, the absorption of good, strong penetration, fast-acting, low residue, have a longer residual effect, the use of safety, to adults and larvae are effective, harmless to crops.

The main forms: 5% granules 20% EC, 20% water emulsion, 35% seed treatment agent.

Dosage: spraying, IRRIGATING, 20% EC shall prevail, 2000-3000 times.

Control target: aphids, mites, scale insects, wireworms, beetles, moths, cicadas and the like.

Precautions:

① not be mixed with acidic or strong alkaline substances, but can be mixed with neutral substances.

② to bees, fish poisonous, avoid spraying flowering or contaminated water.

(C) compound pesticides

Here we must say we are familiar with several drugs, and these drugs are complex formulations, complex composition, basically did not indicate the specific ingredients, also known as low-toxic environmental protection, I can not understand the ingredients of these drugs, so Here are just doing a sort. Also, I would recommend new drugs, are interested can try.

1. mad kill Kuwana (probably poisoned)

Mad to kill is a ternary complex effects Kuwana Kuwana kill agent, has excellent contact and stomach poison and infiltration. Can quickly penetrate the plant tissue, can penetrate through the foliage to the dorsal kill the target pests sucking mouthparts of scale insects have special effects (on scale insects adults and nymphs have excellent control effect). rid of aphids, whiteflies and lepidopteran pests. Mad to kill Kuwana has strong permeability, can kill within the leaf and hidden in the foliage pests, but do not have the uptake and effect, so the spray must be thoughtful, uniform, homogeneous whole tree can be affected by drugs. 1st annual administration controlling scale insects can achieve long-term goal, and the second, three-year incidence of very low scale insects.

Dosage :( 40% EC shall prevail)

Prevention and control scale insects adult (with hard shell period), with a mad Kuwana kill 800 times or kill per 100 liters of water plus mad Kuwana 100-125 ml. Prevention If Kuwana (spring and summer can be just hatched activities), with a mad kill Kuwana 1000-1500 times or kill per 100 liters of water plus mad Kuwana 66.7-100 ml. Around May if Kuwana Sheng period of application not only good results but also less dosage, can save costs, generally only able to get the medicine spray insecticide to kill the eggs of good results.

Mad to kill Kuwana can be used to control a variety of pests, such as beetles classes, yellow stem borer, cotton bollworm, corn borer, aphids, mirids, leafhoppers. According to experience the country, for the prevention and treatment of beetles classes, yellow stem borer, cotton bollworm, corn borer, with mad kill Kuwana EC 100 ml spray watered 1000-1500 kg achieved good results. Aphids mirids, leafhoppers, with mad kill Kuwana EC 30-60 ml spray watered effect 1500 kg.

Precautions:

(1) The election spraying low temperature wind hours of the morning and evening. Sunny temperatures exceed 28 ℃, more than 4 meters per second wind speed, relative humidity less than 65% should stop spraying.

(2) mad to kill Kuwana plus diesel per 100 ml 10-20 ml can kill Kuwana effect more remarkable. But it can not be mixed with alkaline pesticides.

(3) should be avoided Kuwana kill mad late in the flower spray, so as not to cause injury.

2. Kuwana Bristol (low toxicity)

After research, the active ingredient is acetamiprid, low toxicity pesticides on human, animal poisonous, should be noted. I saw the reaction of the drug was a certain corrosive to the skin, to bring better isolation of PE plastic or latex gloves when operating, once contaminated rinse immediately with plenty of water.

Kuwana Bristol has a strong fumigation, penetration, contact and stomach action, scale insects of the wax shell can be worn a direct effect on the parasites kill nymphs, adults, for eggs also have good control effect. This product is red wax scale, Parlatoria Kuwana, Kuwana black spot, brown round Kuwana, Kuwana ball, yanonensis, Phenacoccus, Icerya, turtle wax scale, white Diaspididae and other scale insects have a good role in the killing . For a variety of seedlings, flowers, fruit trees and other plants of various types of scale insects, control effect is remarkable.

Dosage :( 40% EC shall prevail)

2000-3000 fold dilution of spraying, spray scale insects emphasis occurrence site in order to wet the degree does not drip. When the scale insects serious, every 7-10 days and then spray once, the effect is more pronounced.

Precautions:

(1) This product can not be close to the bees, silkworms, fish and shrimp.

(2) the hot season to be elected in the morning and evening spraying, young plants make the appropriate dilution increases.

(3) has a strong fumigation, please pay attention to protect the skin and eyes when spraying, wash the skin contact portion after drug administration.

(4) If swallowed poisoning, please immediately sent to hospital symptomatic treatment. This product should be stored in a cool, dry, well-ventilated place, away from food, children, feed.

(5) Avoid flowering plants aligned in flower use.

(6) Try not to spray pesticide on shoots, leaves.

3. Drawing a God (low toxicity)

Drawing a God-based bio-fermentation products, safe, pollution-free, no odor, no pollution, pesticides and disease prevention for more than 90% effective. "Flowers pest to" Department of Geology, Peking University and Beijing Biochemical Factory nature, the development of flower growth promotion and disease prevention with multifunction insecticidal agent with safe, broad-spectrum insecticide, do not pollute the environment, non-toxic prominent characteristic sound can be a Yipensanfang, save labor time, reduce labor intensity.

For a variety of flowers, garden plants produced aphids, spider mites, scale insects, spider mites, diamondback moth and other pests and powdery mildew, root rot, blight and other diseases.

This product is produced in a variety of stimulating hormone bio-fermentation process, often using make flowers and green leaves.

Dosage:

Spray: plus 200 times diluted with water sprayed on foliage sides

IRRIGATING: 200 times diluted with water poured into the pelvic wall extension

Precautions:

Save dark cool place, run out after the liquid is diluted and washed utensils.

4. soil insects Dan (unknown toxicity usage Shallow less affected)

This product uses the latest granule formulations (oily formulation), processed by advanced technology from science, for soil pests and developed a special insecticide. Lasting effect, and reliable results.

Control objects:

Stem nematode cyst nematode Meloidogyne Leek maggot maggots black cutworm wireworms and other soil pests, but also effectively kill the crop leaf aphids and other pests.

Dosage:

The product is not soluble in water, direct Shallow tillage, irrigated can to 20 cm pots, for example, can be applied to each bag 5 pots.

Finally, explain why not introduce Bayer small green medicine, Japanese white drug, trichlorfon, a hundred insect net, a hundred insects Spirit, flower insect net once, a lot of people use these drugs. Small green medicine has already been explained posts larger its toxicity, some countries have banned. White medicine is too expensive, furthermore unclear ingredients imported goods. Trichlorfon in weak base environment rapidly transformed into dichlorvos, is the famous toxic dichlorvos, it is not recommended. Hundred insects net, hundred insects Spirit, flower insect net once, these drugs cohabitation, are some small production plants, ingredients are doubtful.