Understand Problems Caused By Pests And Methods To Minimise an der University Of Bristol | Karteikarten & Zusammenfassungen

Lernmaterialien für Understand problems caused by pests and methods to minimise an der University of Bristol

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What is meant by the term 'plant pest'?

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A plant pest is a living thing that damages, eats or infects a plant.

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What method of feeding do caterpillars, sawfly larvae and beetles use?

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Biting mouth parts that tear and rasp the plant material

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What method of feeding do aphids and their relatives use?

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Tubular stylet (fused mandible and maxillae) sucking up liquid from plant phloem tissues

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How do insects breath?

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Breathing holes along the length of its exoskeleton

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Feeding method and damage done by rabbits, 2 control methods

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Biting and ripping of bark and new growth

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Peach potato aphid feeding method, damage done and 2 control methods

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sap sucking stylet

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Two spotted spider mite feeding method, damage done by and 2 control methods

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Inject poisonous juices into the plant, causing localised cell death, resulting in a fine mottling of the leaf and eventually death of the whole plant. Fine silk strands indicate a severe infestation.

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Cabbage (large) white butterfly larvae feeding method, damage done and 2 control methods

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Leaves of brassicas and other hosts e.g. wallflowers. Larvae ‘skeletonise’ leaves, with only main veins left over.

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Slugs: feeding method, damage done, 2 control methods

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Biological: nematodes

Physical: coarse sand around the base of pots deters the slug

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Glasshouse whitefly life cycle, and how this could contribute to success of their control

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32 day cycle:

Female lays 200 eggs in a rugby ball shape on the underside of a leaf.

Nymphs hatch into ‘scales’ until the last stage, the ‘pupa’ is formed.

Adult hatches. Within 3 days, starts laying eggs.

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Vine weevil life cycle, and how this could contribute to success of their control

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Females lay eggs in late spring, larvae hatch within 2 weeks. Larvae feed on plant roots and stems. They overwinter in the soil, continuing damage. In early spring they pupate and more adults emerge.

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Black bean aphid life cycle, and how knowledge of this could contribute to the success of their control

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Eggs overwinter

March/April: winged female nymphs appear

Mature adults fly to the nearest host plant and lay up to 5 eggs a day which can produce their own young within 14 days. 

In autumn male and female develop wings and fly to the spindle tree to lay eggs for overwintering.

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Beispielhafte Karteikarten für deinen Understand problems caused by pests and methods to minimise Kurs an der University of Bristol - von Kommilitonen auf StudySmarter erstellt!

Q:

What is meant by the term 'plant pest'?

A:

A plant pest is a living thing that damages, eats or infects a plant.

Q:

What method of feeding do caterpillars, sawfly larvae and beetles use?

A:

Biting mouth parts that tear and rasp the plant material

Q:

What method of feeding do aphids and their relatives use?

A:

Tubular stylet (fused mandible and maxillae) sucking up liquid from plant phloem tissues

Q:

How do insects breath?

A:

Breathing holes along the length of its exoskeleton

Q:

Feeding method and damage done by rabbits, 2 control methods

A:

Biting and ripping of bark and new growth

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Q:

Peach potato aphid feeding method, damage done and 2 control methods

A:

sap sucking stylet

Q:

Two spotted spider mite feeding method, damage done by and 2 control methods

A:

Inject poisonous juices into the plant, causing localised cell death, resulting in a fine mottling of the leaf and eventually death of the whole plant. Fine silk strands indicate a severe infestation.

Q:

Cabbage (large) white butterfly larvae feeding method, damage done and 2 control methods

A:

Leaves of brassicas and other hosts e.g. wallflowers. Larvae ‘skeletonise’ leaves, with only main veins left over.

Q:

Slugs: feeding method, damage done, 2 control methods

A:

Biological: nematodes

Physical: coarse sand around the base of pots deters the slug

Q:

Glasshouse whitefly life cycle, and how this could contribute to success of their control

A:

32 day cycle:

Female lays 200 eggs in a rugby ball shape on the underside of a leaf.

Nymphs hatch into ‘scales’ until the last stage, the ‘pupa’ is formed.

Adult hatches. Within 3 days, starts laying eggs.

Q:

Vine weevil life cycle, and how this could contribute to success of their control

A:

Females lay eggs in late spring, larvae hatch within 2 weeks. Larvae feed on plant roots and stems. They overwinter in the soil, continuing damage. In early spring they pupate and more adults emerge.

Q:

Black bean aphid life cycle, and how knowledge of this could contribute to the success of their control

A:

Eggs overwinter

March/April: winged female nymphs appear

Mature adults fly to the nearest host plant and lay up to 5 eggs a day which can produce their own young within 14 days. 

In autumn male and female develop wings and fly to the spindle tree to lay eggs for overwintering.

Understand problems caused by pests and methods to minimise

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