Spider Mites Marijuana Horticulture by Jorge Cervantes Identify The spider mite is the most common pest found on indoor plants and causes the most problems. Spider mites have eight legs…

Biological Controls Marijuana Horticulture by Jorge Cervantes Predator and parasite availability and supply have changed substantially over the last 10 years. Today, many more predators and parasites are available to…

Water Marijuana Horticulture by Jorge Cervantes Ingredients – A cold jet of water – preferably with a pH between 6 and 7 – blasts insects, spider mites, and their eggs…

Traps Marijuana Horticulture by Jorge Cervantes Ingredients – Sticky traps, such as Tanglefoot resins, can be smeared on attractive yellow or red cards to simulate ripe fruit. When the pests…

Sulfur Marijuana Horticulture by Jorge Cervantes Ingredients – Sulfur. Mixed with lime, sulfur is more toxic to insects but more phytotoxic to plants. Controls – Centuries old fungicide is effective…

Insecticidal Soap Marijuana Horticulture by Jorge Cervantes Ingredients – Mild contact insecticides made from fatty acids of animals and plants. A variety of soaps are available in potassium-salt based liquid…

Seaweed Marijuana Horticulture by Jorge Cervantes Ingredients – Numerous elements including nutrients, bacteria, and hormones. Controls – Suspended particles in seaweed impair, and even kill, insects and spider mites by…

Sabadilla Marijuana Horticulture by Jorge Cervantes Ingredients -This alkaloid pesticide is made from the seeds of a tropical lily, Schoenocaulon officinale, native to Central and South America, and a European…

Ryania Marijuana Horticulture by Jorge Cervantes Ingredients – This contact alkaloid stomach poison is made from stems and roots f the tropical shrub, Ryania speciosa. Controls – Toxic to aphids,…

Rotenone Marijuana Horticulture by Jorge Cervantes Ingredients – Rotenone is an extract of roots of several plants including Derris species, Lnchcarpus species, and Tephrosia species. This poison is a nonselective…

Quassia Marijuana Horticulture by Jorge Cervantes Ingredients – Quassia is made from a subtropical South American tree, Quassia amara, and the tree-of-heaven, Ailanthus altissima. Controls – Soft bodied insects including…

Synthetic Pyrethroids Marijuana Horticulture by Jorge Cervantes Ingredients – Synthetic pyrethroids such as permethrin and cypermethrin act as broad-spectrum, nonselective contact insecticides and miticides. There are more than 30 synthetic…

Pyrethrum Marijuana Horticulture by Jorge Cervantes Ingredients – Pyrenthrum, the best known botanical pesticide, is extracted from the flowers of the pyrenthrum chrysanthemum, Chrysanth-emum coccineum and C. cinerariifoliu. Pyrenthrins –…

Vegetable Oil Marijuana Horticulture by Jorge Cervantes Ingredients – Fatty acids and glycerides. Controls – Lightweight vegetable oil kills slow moving and immobile sucking insects, spider mites, and their eggs…

Horticultural Oil Marijuana Horticulture by Jorge Cervantes Ingredients – Often underrated and overlooked as an insecticide and miticide, horticultural oil is very popular in greenhouses and is regaining popularity among…