Types of Insect Sprays and Chemicals

marijuana cannabis insect bug spider spray chemical

Different types of insect sprays and miticides and their uses.

Types of Insect Sprays for Marijuana Plants

Abamectin
-Controls spider mites, Russet, fire ants, nematodes and leafminers.
-Mix with water. Mix .25 teaspoon (.125cl) per gallon (3.8L).
-Spray when temperature is between 70*F-78*F. Repeat every 5 days.

Baking Soda
-Controls powdery mildew.
-Saturate in water.
-Spray leaves and foliage. Repeat every other day.
-Caution as Baking Soda will change the pH of the foliage surface, which can eradicate the organisms.

Bleach
-Controls numerous bacteria and fungi.
-Mix 5-10% with warm tap water.
-Use as a spray or disinfectant for cleaning inside your grow room.
-Use as often as needed or desired.

Bordeaux Mix
-Controls bacteria and insects.
-Mix following directions on bottle.
-Apply immediately using a spray bottle. Keep shaking while spraying.

Boric Acid
-Controls earwigs, roaches, crickets and ants by killing them via stomach poison.
-Mix borax soap in equal parts with powdered sugar to make toxic bait.
-Use bait around the base of the plants.

Bug Bombs
-Controls every insect or bug in the room the bomb is being used.
-Follow directions on the package the bug bombs come in.

Copper
-Controls Gray Mold, Foliar Fungus, Anthracnose, Blights, Mildews and many bacteria diseases.
-Follow directions to mix, then apply immediately after mixing.

Neem
-Controls caterpillars and other immature insects including larvae of white flies, fungus gnats, mealybugs, and leafminers.
-Mix with vegetable oil or canola oil. Mix prior to using in water with a pH of 6-7.0. Use a spreader sticker.
-Drench the soil or add to the nutrient solution which allows the neem oil to enter into the plants tissue and become systemic.
-Can also be effective when used as a spray.

Neem Oil
-Controls Spider Mites, fungus gnats, and aphids. Can also be effective against powdery mildew and rust.
-Mix prior to adding it to water with a pH of 6.0-7.0. Use a spreader sticker or spray.
-Spray on the underside of foliage, where mites live.
-Repeat every other day.
-Can leave a foul taste if sprayed on buds that are within a week of harvest.

Nicotine and Tobacco Sprays
-Controls sucking and chewing insects.
-Mix, use a spreader sticker.
-Combine with insecticidal soap and spray foliage.
-Repeat once a week.

Horticultural Oil
-Controls and kills slow moving and immobile sucking insects, spider mites and their eggs.
-Mix 1 teaspoon of oil spray-no more than 1% solution-per quart of water.
-Spray leaves entirely, including under the leaf. Repeat every 5 days.
-Stop use 2 weeks prior to harvest.

Vegetable Oil
-Use a lightweight vegetable oil to kill slow moving and immobile sucking insects, spider mites and eggs.
-Mix 3 drops of oil spray per quart of water.
-Spray foliage until soaked. Discontinue use 2 weeks prior to harvest.

Pyrethrum
-Kills aphids, whiteflies, spider mites, and insects including beneficials.
-Mix in water with a pH of 6.2-7.0 before applying Pyrthrum.
-Spot spray plants that are infested with bugs or insects. Most Pyrethrum comes in an aerosol can.
-Always apply just before the lights and fans go off for the night, to help keep it on the plant.

Synthetic Pyrethroids
-Controls aphids, whiteflies, thrips, beetles, cockroaches, caterpillars, and spider mites.
-Keep in mind that many insects are resistant to pyrethroids.
-Follow manufacturers directions for use.

Seaweed
-The suspended particles in seaweed kill spider mites and other insects by causing lesions.
-Dilute per the instructions.
-Spray directly on foliage and under side of leaves.

Insecticidal Soap
-Controls soft-bodied insects such as aphids and mealy bugs, spider mites, thrips, and whiteflies.
-Add a few teaspoons of soap to a quart of water to create a spray.
-spray when you first notice any sign of bugs or insects on your plants.

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