LO 1.2 - 1.4 - Non insect pests. Flashcards
Name some non insect pests
- Spider mites
- woodlice
- slugs
- nematodes
- birds
- mamals
Info Graphic
Two spotted spider mites
Question
Spider mites
Barley visible
Why alternative names?
Females turn red before hibernation
Info graphic
Red spider mites
Damage symptoms
Swarming
Describe Spider mites
- 4 pairs of leges
- no wings
- blobular bidy
- webbing
Red Spider Mite Climate and Symptoms
Thrives in warm conditions
Info graphic,, life cycle
Control Spider mites
Cultural
* Mist 2 times daily
* Well spaced plants
* Clean greenhouse in winter
Biological
* Another predatory mite
Chemical
* Last resort, but you may encounter resistance problems
* Sodium salts of fatty acits. (Savona)
Name some other mites
Lime nail-gall mite
Conifer spinning mite
Walnut blister mite
Tarsonemid mites
* Tiny….
Black current gall mite
Other Pests
Woodlice
Woodlice
- Head and thorax fused
- seven pairs of legs
- Crustacean
Woodlice damage
Seedlings may get eaten.
Info Graphic
Non Arthropod pests
Info Graphic
Info Graphic
Slugs & Snails
Define Slugs adn Snails
- From squid family
- Un-segmented
- No shell = shell; Shell = snail.
- Toothed tongue
- Movement by large muscular foot
Slugs
- 50,000 per hectare
- Hermaphrodite:
- Both have male and female organs
- Still need to mate
Damage symptoms
- Irregular holes in leaves - sides middle and back - feed at night
- Slime trails
- Seedlings decapitated
Info Graphic
Damage symptoms
Info Graphic
Garden Snail
Slug Control
Cultural
* Grit, coffee grinds, copper barriers
* beer traps
Biological
* Nematodes, birds (chickens)
Chemical
* Last resort
* Slug pellets
Nematodes
- Sometime called eelworms
- Microscopic
- Plant parasitic ones have mouth spear
Nematodes
- Cylindrical body
- Cuticle
- Need water film for movement
- Males and females exist
- High numbers
Bad Nematodes
Cysts nematodes
* problem for potatoes
Root knot nematodes
* Problem in tomatoes
INfo Graphic
Nematodes
roots
Nematodes
Vector for viruses
Leaf nematodes
Bulb eelworm
