LO 5.2 - Identify 5 common pests from a list of 10 Flashcards
Examples include: Aphid, vine weevil, leather jacket, red spider mite, symptoms of gall mite of blackcurrant and eelworm, glasshouse white fly, slugs and snails, caterpillars - symptoms, damage and control measures (30 cards)
Identify this pest
What is this pest and it’s symptoms?
Pest ID
Carrot root fly symptoms
* Foliage becomes** wilted and discoloured**.
* Leaves turn rusty red to scarlet with some yellowing.
* Rusty-brown tunnels are seen under the outer skin of mature roots
Pest ID
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What is this pest and it’s biological controls?
Pest ID
Biological
Parasitoid wasps
* Aphidius - Lays egg in aphid host and larva consumes host
Predators
* Hoverfly
* Lacewing & Larvae
* Ladybird & Larvae
* Gall midge larvae
* Orius bug
* Macrolophus pygmaeus (Green bug)
* Birds
Bio-Insecticide
* Naturalis L (fungus)
Pest ID
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What is this pest and it’s controls?
Pest ID
Red Spider Mite Controls
Cultural
* Mist plants twice daily
* Grow plants well-space plants, get rid of old plants.
* Clean greenhouse thoroughly in winter » Get rid of hibernating (red) females.
Biological
* Phytoseilus persimilis » Another predatory mite
Chemical
* Last resort, specific acaricides - resistance problems
* Fatty acids (Savona, Serenade)
Pest ID
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What is this pest and it’s cultural controls?
Pest ID
Whitefly cultural controls
- Hang yellow sticky traps - Indicator mainly
- Good weed control inside - remove alternate host plants
- Watch for signs of whitefly on new purchases
- Good ventilation will control the growth of sooty moulds
Pest ID
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What is this pest and damage caused?
Pest ID
Black Vine Weevil symptoms
* Semi-circular notches eaten from edges of leaves
* Severe plant damage (or death) by larvae
* Can cut off roots
Pest ID
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What is this pest and damage caused?
Pest ID
Aphid Damage
* Weakens plants
Vectors of viruses
* Giving galling and distortions
Pest ID
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What is this pest and it’s biological controls?
Pest ID
Black Vine Weevil biological controls
* Bacteria in nematodes to kill black vine weevil larvae
* Products are Entonem - Larvanem - Sportnme-H
Pest ID
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What is this pest and it’s symptoms?
Pest ID
Leather Jacket Symptoms
* Lawns develop yellowish brown dead patches;
* seedlings collapse having been eaten at soil level
* Crows dig up soil
Pest ID
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What is this pest and it’s chemical controls?
Pest ID
Whitefly chemical controls
- Flipper - Fatty acid
- Gazelle - Chemical
- Movento - Chemical
- Naturalis-L - Fungus
- SB Plant Invigorator
Pest ID
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What is this pest and it’s cultural controls?
Pest ID
Leather Jacket controls
Cultural
* Lawn maintenance by improving drainage, regular mowing, aeration and fertillization.
* Nesting boxes for birds like starlings and thrushes, they eat leather jackets
Pest ID
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What is this pest and it’s biological controls?
Pest ID
Leather Jacket controls
Biological
* Nematodes - Entonem, apply from late August to October’s end.
* Apply Nematodes in spring if infestation is severe and temp is above 10° C.
Pest ID
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What is this pest and it’s chemical controls?
Pest ID
Leather Jacket controls
Chemical
* None available
Pest ID
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What is this pest and it’s symptoms?
Pest ID
Cabbage root fly symptoms
* Wilting foliage due to maggots or larvae eating roots
* Maggots at base of plant
Pest ID
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What is this pest and damage?
Pest ID
Snail and Slug damage symptoms
- Irregular holes in leaves - Sides, middle and back - Feed at night, when warm and humid
- Slime trails
- Seedlings decapitated
Pest ID
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What is this pest and it’s biological controls?
Pest ID
Whitefly biological controls
- Parasitic wasps, Encarsia formosa.
- Introduce the parasite before plants are heavily infested.
- Parasitised nymphs turn black so it is easy to monitor
- Encarsia is killed by most insecticides, avoid spraying
Pest ID
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What is this pest and it’s cultural controls?
Pest ID
Cabbage root fly controls
Cultural Control
* Place disks at base of young plants
* Cover crop with horticultural fleece
Pest ID
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What is this pest and it’s chemical controls?
Pest ID
Chemical
* Only as a last resort
* Integrated crop management
Pest ID
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What is this pest and it’s symptoms?
Pest ID
Caterpillar damage symptoms
- Considerable defoliation (spring early summer)
- Trusses can be destroyed
Pest ID
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What is this pest and it’s controls?
Pest ID
Snail and Slug Controls
Cultural
* Grit, coffee grinds
* Copper barriers
* Beer traps,
Biological
* Nematodes
* birds (chickens)
Chemical
* Last resort - Slug pellets
Pest ID
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What is this pest and it’s cultural controls?
Pest ID
Black Vine Weevil cultural controls
* Grease band is used to prevent climbing trunks
Pest ID
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What is this pest and it’s symptoms?
Pest ID
Scarlet lily beetle symptoms
- Larvae covers themselves with frass (Poo)
- Foliage is eaten by adults and grubs
Pest ID
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What is this pest and it’s cultural controls?
Pest ID
Aphid Cultural Controls
* Grow healthy plants
* Increase biodiversity
* Lavander Its strong scent can also deter aphids
* Wormwood scent deters aphid, flower attracts lacewings, ladybirds and hoverflies
* Marigold, lures aphids away from beans, attracts ladybirds, lacewings and hoverflies
* Thyme deters aphids
* Nasturtiums lure aphids away from beans, flower attracts predators as above
* Fennel attracts hoverflies
* Yellow Sticky traps
Pest ID
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What is this pest and it’s symptoms?
Pest ID
Red Spider Mite Symptoms
* Light speckling on upper leaf surface
* Discolouring of leaves
* Silk webbing when numbers are high » Biggest problem in June/July
Pest ID
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What is this pest and it’s controls?
Pest ID
Scarlet lily beetle controls
Cultural
* Grow different plants » or less-susceptible lilies
* Handpick beetles (laborious)
* Encourage wildlife (e.g. ground-beetles, birds)
Biological
* Parasitic wasps show potential………
Chemical
* Last resort
Pest ID
