Thrips
| Thrips | |
|---|---|
| |
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| Onion thrips | |
| Scientific Classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Thysanoptera |
| Synonyms | |
| Thrips |
|
Thrips are tiny, slender insects with fringed wings. Thrips species feed on a large variety of sources both plant and animal by puncturing them and sucking up the contents. A large number of thrips species are considered pests, because they feed on plants with commercial value. Thrips like tight spaces for hiding and feeding and, with regards to onions, are usually found in the neck or folded leaves.[1]
Symptoms[edit | edit source]
A heavy infestation of thrips will cause sufficient damage to the leaves to reduce photosynthetic ability and, as a result, reduce any fruit yield. Silvery-white streaks are noticeable on the petals. Fruit damage varies depending on the crop.
Cucumber[edit | edit source]
An infestation results in distortion and curling of the fruit, white linear markings are visible.[2]
Pepper[edit | edit source]
Silver or brown streak spots are visible on the fruit. Feeding on sweet pepper causes silvery or bronze streaks or spots on the fruit. The sepals may also curl due to thrips feeding and expose the fruit to infections.[2]
Tomato[edit | edit source]
Ghost spoting may be visible if feeding has occured on the fruit. This may also occur on cucumber and pepper fruit.[2]
Galleries[edit | edit source]
Thrips[edit | edit source]
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Plant damage[edit | edit source]
References[edit | edit source]
| This page uses Creative Commons Licensed content from Wikipedia (view authors). |
| Allium troubles |
|
|---|---|
| Chives · Garlic chives · Leek · Onion · Shallot | |
| Adverse conditions | Bolting · Bruising · Manganese deficiency |
| Diseases | Aster yellows · Bacterial soft rot · Centre rot · Black mould · Damping off · Downey mildew · Fusarium basal rot · Iris yellow spot virus · Neck rot · Onion smudge · Onion smut · Onion white rot · Pink root of onion · Purple blotch · Rust · Sour skin · Stemphylium leaf blight · White tip disease · Xanthomonas leaf blight of onion |
| Pests | Cutworm · Leaf miner (Allium leaf miner, Leek moth, Pea leafminer, Vegetable leafminer) · Stem and bulb nematode · Stubby root nematode · Thrips (Onion thrips) · Wireworm |
| Aubergine troubles |
|
|---|---|
| Adverse conditions | |
| Diseases | Black dot · Phomopsis blight · Phytophthora blight · Ring rot · Southern bacterial wilt · Southern blight |
| Pests | Aphid · Flea beetle · Greenhouse whitefly · Pepper weevil · Red spider mite · Southern corn rootworm · Thrips (Melon thrips) |
| Bean troubles |
|
|---|---|
| Broad bean · French bean · Runner bean | |
| Adverse conditions | Frost · Iron deficiency · Manganese deficiency · Sun scald |
| Diseases | Bacterial brown spot of bean · Bean anthracnose · Bean common mosaic virus · Beet curly top virus · Brown spot · Chocolate spot · Charcoal rot · Floury leaf spot · Fusarium wilt · Grey mould · Halo blight · Phoma blight · Powdery mildew · Pythium · Rust · Sclerotinia rot · Southern blight · Tomato ringspot virus · Tobacco ringspot virus · White leaf spot |
| Pests | Aphid · Capsid bug · Leaf miner (Vegetable leafminer) · Red spider mite · Root-knot nematode · Slug · Stem and bulb nematode · Thrips (Bean flower thrips, Onion thrips, Western flower thrips) |
| Brassica troubles |
|
|---|---|
| Broccoli · Brussels sprout · Cabbage · Cauliflower · Horseradish · Kale · Kohl rabi · Radish · Swede · Turnip | |
| Adverse conditions | Blown sprouts · Bolting · Boron deficiency · Button cauliflower · Calcium deficiency · Heartless cabbage · Magnesium deficiency · Manganese deficiency · Molybdenum deficiency · Nitrogen deficiency · Oedema · Split heart |
| Diseases | Anthracnose of Brassicas · Bacterial soft rot · Black leaf spot · Black rot · Brassica dark leaf spot · Cabbage leaf curl virus · Club root · Downey mildew · Grey leaf spot (Brassica) · Phytophthora root and stem rot · Sclerotinia rot · Turnip mosaic virus · Turnip yellow mosaic virus · White leaf spot (Brassica) · White rust · Wire stem |
| Pests | Aphid · Cabbage aphid · Cabbage Moth · Cabbage root fly · Cabbage whitefly · Cutworm · Diamondback moth · Flea beetle · Large White · Pigeon · Silver Y moth · Slug · Small White · Swede midge · Thrips (Onion thrips, Western flower thrips) |
| Cucurbit troubles |
|||||||
|---|---|---|---|---|---|---|---|
| Courgette · Cucumber · Marrow · Pumpkin · Squash | |||||||
| Adverse conditions | Calcium deficiency · Frost · Oedema · Potassium deficiency · Sun scald · Split fruit | ||||||
| Diseases |
|
||||||
| Pests | Aphid · Greenhouse whitefly · Large white · Leaf miner · Red spider mite · Root-knot nematode · Slug · Thrips (Onion thrips, Western flower thrips) | ||||||
| Ericaceae troubles |
|
|---|---|
| Bilberry · Blueberry · Cranberry | |
| Adverse conditions | Iron deficiency |
| Diseases | Hemlock needle rust · Sudden oak death |
| Pests | Blueberry maggot · Cranberry fruitworm · Leaf-footed bug · Thrips · Vine weevil · Winter moth |
| Pepper troubles |
|
|---|---|
| Chilli · Sweet pepper | |
| Adverse conditions | Calcium deficiency · Sun scald |
| Diseases | Alfalfa mosaic virus · Anthracnose fruit rot of pepper · Bacterial spot of tomato and pepper · Cucumber mosaic virus · Frogeye leaf spot · Grey mould · Pepper mild mottle virus · Phoma blight · Phytophthora blight · Sclerotinia rot · Southern blight · Tobacco etch virus · Tomato spotted wilt virus |
| Pests | Aphid · Leaf miner · Pepper weevil · Red spider mite · Root-knot nematode · Thrips (Chilli thrips, Western flower thrips) |
| Tomato troubles |
|||||||
|---|---|---|---|---|---|---|---|
| Adverse conditions | Blossom drop · Blossom end rot · Catfacing · Dry set · Fasciation · Frost · Greenback · Hollow fruit · Leaf roll · Leggy plants · Magnesium deficiency · Nitrogen deficiency · Oedema · Phosphorus deficiency · Potassium deficiency · Split fruit · Sun scald · Tomato stem primordia | ||||||
| Diseases |
|
||||||
| Pests | Aphid · Cabbage whitefly · Flea beetle · Greenhouse whitefly · Leaf miner (Tomato leafminer, Vegetable leafminer) · Potato cyst nematode · Potato psyllid · Root-knot nematode · Slug · Thrips (Eastern flower thrips) | ||||||
- ↑ Sparks, A.N.Jr. (2003). "Onion Thrips". "Forestry Images". Image Number: 1327083. Retrieved 2010-07-17.
- ↑ a b c Murphy, G. Ferguson, G. Shipp, L. (2009) "Biology Of Thrips In Greenhouse Crops". Minitry of Agriculture, Food & Rural Affairs, Ontario. Retrieved 2010-07-17.





















