Fungicides and insecticides: drug compatibility and combination table

Universal means for protecting the garden from pests - tank mixtures. Often summer residents and farmers use ready-made purchased drugs. But you can cook them yourself. It is important to take into account the compatibility of fungicides and insecticides of which the mixture will consist. A table of compatibility of substances, as well as knowledge of the intricacies of technology and rules of use, will help prepare the product in the country.

Can fungicides be mixed with insecticides?

During spring and autumn work, the summer resident has to treat plants with several means - from insects, fungus and diseases. Spraying the plant first with one drug and then with another takes a long time.

Insecticides and fungicides can be mixed in a common container and sprayed at one time. But before preparing a mixture of existing products, you need to check their compatibility.

When selecting components, you need to consider:

• action of insecticides - systemic, contact, protective, broad spectrum;
• development phase, type of insect - gnawing, sedentary, rapidly breeding;
• appointment of fungicides - prevention, treatment of fungus.

Rodenticides are also used in solutions.

Compatibility chart for insecticides, fungicides and microfertilizers

Compatible are those preparations that match in terms of processing, physical and chemical properties. The solubility of substances in water affects the order in which they are added to the container during mixing.

Practitioner(s)Topaz (f)Horus (f)Efatol (f)Decis Forte (u)- ++-+ Zenith(s) +++++ + ++Impact (f)+ +++ + ++Practitioner(s)+ + -++ + +++ +Chorus (f)++ + +-Efatol (f) + ++-

	Decis Forte(s)	Zenith(s)	Zolone(s)	Impact (f)	New Star(s)
						+	+	-
-		+	+						Zolone(s)
+		+	+	-	+
			+		+	+		New star(s)	-
+	+		+	+
			+	+	+		Topaz (f)	+	+
									+
+	+					-	+	+	+

Symbol:

• F - fungicide;
• I - insecticide;
• + - compatible;
• - - not compatible.

Means of the same action are usually not mixed. More often, the mixture includes a drug against insects and fungus. But with excessive activity of parasites, viruses, several similar substances dissolve in one tank.

Useful facts about mixing popular chemicals:

• Bordeaux liquid is not added to the solution, but sprayed separately;
• Fitoverm and Aktara are incompatible. Separately, each of them is combined with Baikal-Em, Fitosporin;
• antifungal biopreparation Pseudobacterin-2 is compatible with chemicals, but not compatible with succinic acid;
• Mixes of antibacterial drugs and pesticides work effectively against the codling moth: bitokisbacillin, lipidocda with fufanon, kemiphos.
• biologics with bacteria work well with chemical fungicides.

Fungicides with sulfur in the composition and oil preparations must not be mixed. Biological substances with a fungal basis will be destroyed by antibiotics.

What is tank mix

A tank mix is a combination of several chemicals used to control horticultural pests and diseases. Substances in solution are able to enhance the action of each other. A single treatment with a mixture is more useful than multiple exposures. Plants and soil adapt better to the preparations, and the gardener saves time.

Insects and viruses get used to the constant action of one poison. They do not have resistance to a complex solution, so it is more effective. Gardening will be less frequent. For a farm of several hectares, less complex preparation will be required compared to the usual one.This will save money, reduce the consumption of raw materials and water, and preserve soil fertility for longer.

Complete tank mixes contain two or more components. Herbicide against weeds is also mixed with insecticides and fungicides. The benefits of the composition are added liquid fertilizer, a growth stimulator. Chemical compounds inhibit plants, and top dressing, stimulants strengthen their immunity.

Where to dilute the mixture of pesticides

Chemicals for pest control are mixed in water. Base quality requirements:

• room temperature, 10 to 22-25 degrees;
• filtered, spring;
• transparent.

River water, rain water is not suitable for mixing. Silt, the bacteria in it can affect the chemical reaction.

Water with mineral s alts is not suitable. If it is hard, the chemicals will precipitate.

Soap solution can be added to make contact pesticides better attached to plants. But for system tools it is useless. Soap is alkali. It will act as a neutralizer for acid preparations.

What can and cannot be mixed?

Recommendations for mixing chemicals against insects manufacturers indicate in the instructions on the package. If there are no special instructions and restrictions, you can use the following hint on how to combine fungicides and insecticides:

• check compatibility by experience - mix a small amount of drugs in a bucket of water;
• combine substances recommended for a certain growing season.

Products designed to be sprayed on plants during flowering will have little or no effect after harvest.

During the preparation of a homemade mixture, incompatible substances change the physico-chemical properties of each other. The result will be a toxic solution with sediment that will clog the spray nozzles and the mixture will coat the plants unevenly.

Solution of incompatible drugs is dangerous due to phytotoxicity. Substances accumulate in plants and cause burns, which can be seen after 2-3 days. Also, the effect of the poison may appear in a week in the form of fallen leaves.

To check the compatibility of the components and water, the preparation of a test solution will help. As a result of a chemical reaction, a precipitate may appear, its consistency may change. In this case, you need to replace one of the components or use water from another source. The downside of making a homemade tank mix is that you have to try and make compatibility between the substances.

Do not mix:

• fungicides and minerals: boron, iron, zinc, magnesium. Fertilizers based on them also cannot be added to the solution;
• preparations containing sulfur and calcium;
• acids and alkalis;
• sulfur and boron with oils;
• boron and lime;
• calcium with phosphorus, sulfur, magnesium, iron.

Lime increases toxicity, so Bordeaux liquid is not added to solutions due to lime in the composition. An excess of growth stimulants will have the opposite, suppressive effect.

Factory tank mixes contain additives that balance the properties of various chemicals: solvents, stabilizers, antioxidants, preservatives, acidity and evaporation regulators.

Safety measures in the use of tank mixes

In order not to harm the plants and prepare a homogeneous solution, it is important to follow the order of mixing chemicals:

• water soluble;
• dry granules;
• concentrates, suspensions;
• oils, emulsions.

Surfactants, aqueous solutions, liquid fertilizers and stimulants are added last.

If the mixture separates, flakes, sediment appear, it cannot be used - the constituent preparations are incompatible and toxic.

The mixture must be prepared and used on the same day. Over time, it loses its useful properties. It is better to use substances with a state registry number on the package.

Spraying rules

Recommendations for treating the garden with insecticides:

• do not spray diseased, damaged stems;
• disinfect the garden in good, warm weather;
• do not treat insects and weeds at the same time;
• fertilizing with inorganic s alts should be applied after spraying with pesticides.

Insect-attacked plants are vulnerable to chemicals. In hot weather, preparations can burn leaves and stems in the sun. In the spring, you need to process the plants on a sunny day without wind. Wait a week between tank mix and herbicides.

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