What Is A Pyrethrum Spray And How To Use It On Plants?

Ever heard of a pyrethrum spray?

A natural pyrethrum spray comes from the dried blossoms of white daisies, Tanacetum cinerariifolium. The insecticidal activity of this potent organic compound targets an insects nervous system, paralyzing (on contact), thus leading to its death.

Pyrethrum Spray - An established commonly used natural pesticide and considered one of the best and safest "organic insecticide sprays"

The Pyrethrin spray – An established commonly used natural pesticide and considered one of the best and safest “organic insecticide sprays” permitted under National Organic Standards rules. Pyrethrum (“pie-wreath-rum”) combined with  Piperonyl Butoxide (PBO) find themselves broadly utilized in insect control sprays.

Around 200 years ago in Central Asia individuals found that dried, pulverized blossoms of specific chrysanthemums worked as a bug poison. Amid the Napoleonic Wars (1804-1815), this ‘bug powder’ controlled bug and body lice infestations, by French warriors.

Today, organic growers prefer to use a pyrethrum spray over synthetic pesticides as they only effect insects (works by shutting down their nerve cells) and doesn’t affect humans or mammals. Aside from this, the active compounds break down (due to sunlight exposure) within a matter of days, making it and environmentally safe alternative for use on vegetables, fruits, and even your flowers.

Advantages of Using Pyrethrum Spray

Efficient Insect Killer And Repellant

As mentioned above a Pyrethrum concentrate contains a highly toxic compound. When used in low concentrations, the spray help repel insects from your garden, while high levels eliminate most of these insects altogether.

Biodegradable

Most of the active ingredients found in pyrethrum spray breaks down after a few days. Research shows that this botanical insecticide breaks down much faster when exposed to UV (sun rays) rays.

Spot Spraying

Spot spraying proofs very effective for heavily infested plants. Apply sprays to the “hot spots” directly to the insect’s body.

However, use pyrethrin sprays with care and consideration. Consider all other options first, use them as a last resort. Natural pyrethrum are very dangerous to honeybees, wasps, and other gainful bugs, as well as to fish.

What Pests Does Pyrethrum Sprays Control?

Pyrethrum frequently control aphids, armyworms, spider mites cucumber bugs, cutworms, squash bugs, whiteflies, leafhoppers, thrips and Colorado potato bugs.

How To Use Pyrethrum Spray On Plants

Like all insecticides, when applying them applicators should take caution. Outlined below you’ll find a few recommended ways to use pyrethrum on plants.

Spray Early In The Morning

If spraying to control flight insects, apply a pyrethrum botanical insecticide very early in the morning before the sun comes up. Using a hand sprayer, and wearing a respirator or self-contained breathing apparatus apply insecticide directly on the infested plants without disturbing them. This allows maximum exposure and efficiency for controlling these pests.

Consider covering treated plants with an old sheet or row cover to protect honeybees, lady beetles, and other beneficial insects. Covering the plants for at least 24 hours gives enough time to ensure a thorough kill on the target insects.

Spot Spraying

Spraying in those “hot spots” proves very efficient for controlling nymphs especially when crowded together. Spot applications are recommended for vegetable and fruit crops affected by whiteflies and other insects that attack in groups.

Use In Liquid Form

Although commonly available in dust form many advise using this organic pyrethrum concentrate, in a liquid form. Mix the pyrethrum powder with either soapy water or oil (as recommended by the manufacturer). However, liquid form is considerably more efficient over in powdered form. You also get to protect various pollinators (such as bees and butterflies) from pyrethrin when using it in liquid form.

Pyrethrum products come packaged and ready to use, simply follow the manufacturer’s directions, to control these pests fast and efficiently. Many pesticides on the market today, including synthetic ones, contain pyrethrin in them.

Organic pyrethrum products may, however, contain soaps or oils which help enhance their effectiveness in controlling pests.

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