Cannabis Pest Management Final Review

What do leafcutter ants farm for food?

Fungi

Why do some ants farm aphids?

To harvest the honeydew extraction

What is the first measure to prevent an ant invasion in your garden?

Prevent them with barriers

Why do aphids transfer disease so well?

Aphids have a proboscis that they insert into the plant material. This needle like tool passes viruses and bacteria into the plant.

What are the symptoms of root aphid damage?

Wilting, yellowing, premature leaf drop

What horticultural oil works well against root aphids?

Neem oil

Where do leafhoppers lay their eggs?

In a slit in a leaf

What is an effective way to treat large infestations of leafhoppers?

Insecticidal oils

What is a good biological control against leafhoppers?

Minute pirate bug

What is the pesticide azadirachtin made from?

Neem seeds

How are spider mites most likely brought into the greenhouse?

Transported by gardeners on their pets, clothes, and clones

How do thrips attack plants?

They scrape the leaves to obtain food and then drink the juices

What does the damage from whiteflies look like?

Tiny, yellow-brown leaf spots

What is a biological control for mealybugs?

Lady beetles

What is a good biorational pesticide against spider mites?

Neem oil

What is a good biorational pesticide for fungus gnats?

Hydrogen peroxide

What is a good physical barrier to prevent thrips?

Air filtration

What is a good physical control against whiteflies?

Vacuuming

What is stippling?

Small, necrotic spots on the tops of leaves

Where do whiteflies lay their eggs?

On the underside of leaves in a circular or random pattern