Download Greenhouse Pest Management

Greenhouse Pest
Management
I will be able to explain what greenhouse
pests are and how to get rid of them by
completing a greenhouse pest project.
Pests

Can be any of the following:
 Insects
 Vertebrates
 Nematodes
 Weeds
 Pathogens
 Fungal
 Bacterial
 Viral
Pests

Can be any of the following:
 Insects
 Vertebrates
 Nematodes
 Weeds
 Pathogens
 Fungal
 Bacterial
 Viral
Greenhouse Weeds
Greenhouse Weeds



Greenhouse weeds are adaptable, have short
lifecycles, and are very prolific seeders
Greenhouse weed control is important from an
aesthetic standpoint as well as from a pest
control standpoint
Weeds can harbor insects as well as diseases
Common Greenhouse Weeds




Wood sorrel (Clover)
Bittercress
Spotted Spurge
Crabgrass
Greenhouse Insects
Insects Life Cycle




Eggs
Crawler
Growing (Instar)
Adult
Insects

Are any life forms competing for resources
Plants or animals
 Organism which pose a threat to other organisms’
health


2 groups

Chewing insects cause damage to plants by chewing
foliage


caterpillars, beetles and grasshoppers
Sucking insects have mouthparts designed to pierce
and suck

aphids, leafhoppers and mites
Major Greenhouse Pests
 Whiteflies





Mealybugs & Scales
Mites (spider mites, broad mites, & etc.)
Thrips
Leafminers
Nuisance Pests (fungus gnats and shore
flies)
Greenhouse Diseases
Disease



Is any condition interfering with normal growth
and development
Is caused by living or non-living agents
Can affect any area on a plant
14
Types of Diseases



Fungi
Bacterial
Virus
Fungal Diseases





Spread from plant-to-plant via wind, insects,
rain, soil and machinery
Can be transmitted by seeds
Can be waterborne
Are most common and easiest to treat
Usually start with spotted or discolored leaves
and stems

dry, brown margins and dead tissue or necrotic
lesions
Bacterial Diseases



Are easier to prevent rather than cure
Enter plants through wounds or natural
openings, such as the stomata
Easily occur under the following conditions:
high humidity
 poor air circulation
 irregular watering
 poor soil drainage
 fluctuating temperatures

Bacterial Diseases

Spread by:
infected seeds
 animals and birds
 irrigation water and rain
 machinery


Have symptoms such as:
leaf spots
 blights
 wilting

Viruses



Are microscopic, infectious agents consisting of
a protein coat surrounding nucleic acid
Multiply in cells of living hosts
Are recognized by the following symptoms:
leaf curling
 leaf discoloration
 ring spots on leaves
 stunted growth

Assignment

This will be an on going assignment that we will
build on. Make sure you just write down the
information and then we will finish it all later
once everything is done.
Assignment

You will choose 3 pests
Insect
 Weeds
 Fungal
 Bacterial
 Viruses


You will need to following for each:
Pest name
 How the plant can receive that pest
 What happens to the plant when they receive the
pest
