“In My Grow Show” with Alex: Ep.60 Trichogramma and Caterpillars.

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Trichogramma can help control caterpillars.

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Caterpillars in your cannabis/marijuana garden and how to fight them.

by Alex Robles

One of the biggest pest problems when we’re growing cannabis outside or in a greenhouse, is caterpillars.  These little demons will devastate a crop and break your heart. Caterpillars are the voracious larvae of butterflies and moths and are part of a large family of insects known as Lepidoptera.  Now when I say large, I mean 21,000 members strong in that family.

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Biological Predator: Green Lacewings

by Alex Robles

Biological predators are my first line of defense and best answer for pest management in my gardens.  I don’t have to worry about pest developing a resistance to them like I would with certain pesticides.  But I do know that a certain number of pests have to be in the garden for predators to want to stay and feed, Green Lacewings are no different.  There are about 1,200 green lacewing species are known worldwide.  They are great general predators that will attacks insects and insect eggs, such as aphids, small caterpillars, mites, whitefly, scale, mealybug, thrips, psyllids, and other soft-bodied insects.

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Thrips and the Cannabis (Marijuana) Plant.

by Alex Robles

 When it comes to thrips, identification is key, because there are about 4,500 different species of them and they don’t all feed on cannabis.  The most dangerous threat to cannabis from thrips is the Frankliniella occidentalis, also known as the Western Flower Thrip.

Western flower thrip adult (UC Davis Department of Entomology)

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Root Aphids and the Cannabis (Marijuana) Plant

by Alex Robles

If you’ve never had root aphids before, count yourself lucky.  They are sinister little bastard that can be easily misdiagnosed.  Since “knowing is half the battle”, I want to share everything I’ve learned about them.

What are they:

The Root Aphid is in the Phylloxera family of insects, more specifically it is from the Pemphigus species and feeds on a lot of different plant roots.

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