Protecting Vegetables Without Chemicals

2023 Author: Sebastian Paterson | [email protected]. Last modified: 2023-11-26 20:34

Healing infusions

• Cabbage protection
• Tomato protection
• Cucumber protection
• Natural pesticide recipes

Plants need protection from pests and diseases almost every year, but it can and should be done as environmentally friendly as possible.

I believe that those who live in the city, especially weekend gardeners, often need ready-made preparations, and those who constantly live near the site have more opportunities to use local folk remedies, for example, herbal infusions.

At the same time, it should be borne in mind that the use of chemical pesticides is considered permissible only if the number of pests is significantly exceeded, the so-called economic thresholds of harmfulness, in other words, of an economically significant number. These indicators exist for very many cultures, but, unfortunately, few are published for a wide range.

Gardener's guide

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Since vegetable growing is usually started in March, now we will talk about the protection of vegetable crops. For example, let us give the economic thresholds of harmfulness of cabbage pests.

Early cabbage
4-5 days after disembarking seedlings	Cruciferous flea	3 beetles (10%)
Whorl (rosette) of leaves	Cruciferous flea	10 beetles (25%)
	Spring cabbage fly	6 eggs (10%)
Leaf whorl phase (sessile leaves form a dense rosette)	Spring cabbage fly	5 larvae (5%)
	Cabbage scoop	1-2 eggs per 1 m²
The beginning of the formation of a head of cabbage when it is still loose	Cabbage scoop	2 tracks (10%)
		5 tracks (10%)
Medium cabbage, late
4-5 days after disembarking seedlings	Cruciferous flea	3 beetles (10%)
	Cabbage fly	6 eggs or 5 larvae (5%)
Whorl (rosette) of leaves	Cabbage scoop	4-5 eggs per 1 m²
Leaf whorl phase (sessile leaves form a dense rosette)	Cabbage scoop	2 tracks (10%)
	Cabbage and turnip white	5 tracks (10%)
	Cabbage moth	also

Now let's move on to the plan of protective measures. I bring to the attention of gardeners a table that will guide you about when and from whom to spray the plants and what means you can use.

Cabbage protection

Dates	Pests and diseases	Remedies
		Chemical (officially approved but undesirable)	Biological preparations	Vegetable and other folk
Before sowing	Black leg Vascular bacteriosis		Spilling soil 1-3 days before sowing with one of the following preparations: Planriz, Alirin-B, Gamair. Disinfection of seeds with one of the above drugs	Disinfection of seeds by heating, soaking in an infusion of garlic, a solution of potassium permanganate
Before planting seedlings	Wireworms cruciferous fleas	Zemlin, Medvetox Aktara	Nemabakt, Antonem Fitoverm	Baits Dusting with tobacco dust
In the phase of five true leaves or at the first signs of illness	Vascular and mucous bacteriosis	Albite	Bactofit, Fitolavin
Start curling the head	Whitefly caterpillars, scoop, moths	Fury, Kinmix, Fufanon	Lepidocide, Bitoxibacillin, Fitoverm	Birch bark tar, infusions of mustard, wormwood, stepchildren of tomatoes, burdock, yarrow
During the growing season	Aphids	Fufanon, Actellik	Fitoverm	Tobacco dust, infusion of garlic, onion

Tomato protection

Dates	Pests and diseases	Remedies
		Chemical (officially approved but undesirable)	Biological preparations	Vegetable and other folk
1-3 days before sowing On the day of sowing	Complex of diseases		Spillage of soil with one of such preparations as Fitosporin-M, Alirin-B, Gamair, Baikal EM-1. Disinfection of seeds by soaking in one of the above biological products	Warming up seeds, soaking in a solution of potassium permanganate
Budding phase - the beginning of fruiting	Late blight, cladosporiosis, macrosporiosis	1% Bordeaux mixture	2-3 times spraying with a suspension of Alirin-B and / or Gamair with an interval of 10-14 days	Milk serum
Fruit formation 1-2 brushes, flowering 3-4 brushes	Late blight, powdery mildew, Alternaria	1% Bordeaux mixture	Fitosporin, Alirin-B, Gamair. For prevention, also Baikal EM-1	Infusion of garlic in a solution of potassium permanganate
Immediately after hatching of caterpillars	Caterpillar scoop	Decis Profi	Lepidotsid, Fitoverm, Baikal EM-1 (unofficial recommendation)	Tar solution, infusion of blooming wormwood
When a stain appears	Non Infectious Top Rot (Odorless)	Top dressing with a 0.3% solution of calcium nitrate, foliar spraying is possible on the fruits.
When black spots appear on the fruit	Bacterial spot		Spraying with Gamair

Cucumber protection

Dates	Pests and diseases	Remedies
		Chemical (officially approved but undesirable)	Biological preparations	Vegetable and other folk
One month before sowing	Viral infection			Warming up dry seeds at temp. + 50 … + 52 ° С for 72 hours.
1-3 days before sowing	Root rot pathogens	Fungicide Maxim and others.	Spillage of soil with one of such drugs as Planriz, Baikal EM-1, Fitosporin, Baktofit, Alirin-B, Gamair
Just before sowing	Fungal and bacterial infection		Soaking seeds in a solution of Fitolavin and Narcissus for 2 hours.	Infusion of garlic
When symptoms of damage are detected	Spider mites	Fufanon, Actellik	Fitoverm, Bitoxibacillin	Infusion of onion peel, tomato tops, dope ordinary
Before transplant and 10 days after transplant	Complex of fungal diseases		Watering the soil and spraying plants with a suspension of Alirin-B
In the off season	Fungal and viral infections	Greenhouse treatment with a solution of copper sulfate or Farmayod.

Natural pesticide recipes

Infusion of garlic in a solution of potassium permanganate

For 10 liters of water with a temperature of + 23 … + 25 ° C take 1-1.5 cups of ground garlic in a meat grinder, 1-1.5 g of potassium permanganate and 2 tbsp. spoons of liquid soap. The mixture is thoroughly mixed, filtered and sprayed with plants, spending 0.1-0.15 liters of this liquid per bush.

Wormwood infusion

To prepare for 10 liters of hot water, take 300 g of finely chopped wormwood, 1 glass of wood ash and 2 tablespoons of liquid soap.

Infusion of tomato tops

Tomato leaves or stepsons (4 kg) are boiled for 30 minutes over low heat; chilled broth (2-3 l) is diluted in 10 l of water.

Also read:

How to use herbal preparations to combat diseases and pests of vegetables and fruit crops

Plant pesticides - advantages and disadvantages