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BASIS > Pests + Insecticides > Flashcards

Pests + Insecticides Flashcards

1
Q

Complete Metamorphosis

A

Egg - larva - pupa - adult

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2
Q

Incomplete metamorphosis

A

Egg - nymph - adult
Sometimes adult to nymph

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3
Q

Aphid predators

A

Lady bird (not mealey)
Hoverfly
Parasitic wasp
Parasitic fungus
Lacewing

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4
Q

5 chemical insecticide groups with example

A

Organophosphate - Nemathorin
Carbamate - Aphox
Pyrethrproid - Hallmark
Neonicotinoids - Insyst/Gazelle
Diamide - Minecto One + Verimark

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5
Q

Insecticide modes of action

A

ACETYLCHOLINESTERASE INHIBITORS- organophosphates + carbamates
SODIUM CHANNEL MODULATORS - pyrethroid
SODIUM CHANNEL BLOCKERS - indoxacarb (rumo/steward)
ACETYLCHOLINE RECEPTOR ANTAGONIST - neonicotinoids
CHORDOTONAL ORGAN MODULATORS - teppeki
ACETYLCHOLINE RECEPTOR ACTIVATORS - tracer
RYANODINE RECEPTOR MODULATORS - diamides
LIPID SYNTHESIS INHIBITORS - movento
BIOLOGICAL - flipper, dipel
FERRIC PHOSPHATE - slugs

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6
Q

Insecticide resistance

A

Myzus: MACE (carbamates) Kdr (Pyrethroids)
Pyrethroid resistance: flea beetle, pollen beetle, pea bean weevil, DBM, whitefly, onion thrip

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7
Q

Cabbage root fly control

A

3 gens a year starting in mid April
Eggs laid on soil at first gen
Mesh
Drench (Tracer/Verimark)
Foliar (Tracer/Minecto One - not if drenched with Verimark)

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8
Q

Aphids on brassicas

A

Mealey + myzus (end of april)
First month 5% tolerance after 0
Suction, sticky traps + crop walking
Natural predators
Verimark 1st 2-4 weeks
Movento x2 (short season brassicas)
Long season follow with teppeki, gazelle, minecto one (if no Verimark drench)
Biological - flipper + eradicoat max (contact)

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9
Q

Caterpillars brassicas

A

DBM, Silver Y, small white
Pheromone trap + crop walking
Verimark/tracer drenches
Minecto One, Rumo, Dipel, Pyrethroid (watch for resistance)

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10
Q

Pollen beetle brassicas

A

On cauli + broc
Minecto One, Rumo, Pyrethroid (resistance)

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11
Q

Flea beetle brassicas

A

Drilled crops
Verimark, minecto one

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12
Q

Whitefly/thrips/swede midge brassicas

A

Movento (whitefly)
Minecto one (thrips)
Gazelle (swede midge)

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13
Q

Slug control

A

Stronger varieties
Ferric phosphate
Nemslug

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14
Q

Potato Cyst Nematode

A

Pallida (white cysts) Rostochiensis (yellow cysts)
Pallida slower decline between crops, longer hatch period, fewer resistant varieties

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15
Q

PCN soil test + control

A

49 cores per ha at 25cm in autumn
Rotation - populations decrease by 20% per year
Tolerant varieties - piper (rost) royal (pal)
Biofumigants e.g. Brown mustard
Trap crops e.g. thorny nightshade
Nematicides: 1-20 eggs/g soil, Nemathorin (17 week HI), Velum prime, nemguard

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16
Q

Aphids potatoes

A

Myzus, potato
Leaf roll virus, virus Y
Traps + crop walking
Insyst (not after 31/7)
Teppeki (not on ware)
Movento (not during flowering)
On seed apply from emergence to haulm death
On ware threshold 5-10/compound leaf

17
Q

Wireworm

A

After grass up to 4 years, edge of field
Bait traps, site selection, lift early, nemathorin some control (incorporated pre planting)

18
Q

FLN

A

Transmit TRV
Light land
Nemathorin/Velum prime
Spraing resistance varieties

19
Q

Stem Nematode + FLN
onions + leeks

A

In soil for 10 years
Soil test
Rotation, site selection, use sets, good hygiene
Nemguard in furrow

20
Q

Thrips onions + leeks

A

Dry, July/August (cereal harvest)
Sticky trap, crop walking
Irrigation, predators
Resistant to pyrethroids + tracer
Eradicoat, flipper, minecto one (onions), movento (onions)

21
Q

Onion Bean seed fly

A

Eggs on soil, burries into bulb
Force EA on bulb onions

22
Q

Cutworm

A

May-July
Irrigate
Decis (Alliums) Hallmark (Carrots) according to traps (for turnip moth)

23
Q

FLN carrots + parsnips

A

Fanging + root damage
Previous history, cultivations
Velum prime
Nemguard

24
Q

Carrot fly

A

Eggs on soil
2 gens often 3 from mid april
High risk = close to other carrot o celery fields, small sheltered fields
Avoid planting close to same crop, avoid planting headlands, early lifting, online forecast + sticky trip
Hallmark + minecto one adults
Decis/coragen EAMU

25
Q

Carrot willow aphid

A

Carrot Motley Dwarf, Parsnip Yellow Fleck
Spray when found - Movento, Gazelle, Teppeki

26
Q

Aphids Lettuce

A

Nasanovia, Myzus, Black Bean
Contaminant + Virus e.g. mosaic virus
Forecasting
Movento, Gazelle, Teppeki (applied in nursary 49 day HI), Flipper
Root aphid - resistant varieties

27
Q

Silver Y

A

Traps
Pyrethroids, Minecto One, Steward, Tracer, Dipel

28
Q

Pea bean weevil + Thrips peas

A

Pyrethroid e.g. Hallmark

29
Q

Pea Aphid

A

Aphox, Teppeki

30
Q

Pea Moth + Silver Y Peas

A

Traps
Pyrethroids
Silver Y can look like a pea

31
Q

3 aphicides

A

Movento (lipids)
Gazelle (neonic)
Teppeki (disorientates)

32
Q

3 nerve acting insecticida

A

Tracer
Teppeki
Steward

BASIS (8 decks)

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