Aphid Control: |
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Parasitic Wasps: Aphiline c (Aphidius colemani), Aphiline e (Aphidius ervi), Apheline ab (Aphelinus abdominalis), Apheline ACE mix (Aphidius colemani, Aphidius ervi, Aphelinus abdominalis )and Apheline CE mix (Aphidius colemani, Aphidius ervi) |
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ACE Mix contains Aphelinus abdominalis, Aphidius colemani and Aphidius ervi, CE mix contains Aphidius colemani and Aphidius ervi., The mixtures reduce the need for accurate pest species identification. Both mixtures are ideal for botanic gardens, conservatories, nurseries producing a mixed cropping range and plant retail outlets. HOW IT WORKS: The adult wasp inserts its egg into the aphid, a parasite larva develops killing the aphid, producing a characteristic golden-brown papery 'mummy' with Aphidius species, and black 'mummy' with Aphelinus species. An adult parasitic wasp later emerges through a round hole on the mummified aphid. The adult wasps also feed on aphids, killing one or more each day. SPECIES CONTROLLED: Aphidius colemani is particularly effective against round bodied aphid species such as Myzus persicae (peach-potato aphid) and Aphis gossypii (melon cotton aphid). It is not effective against Macrosiphum species. It can control large populations of aphids, but will take time to achieve this and may leave many parasitised 'mummy' bodies on plants. Aphidius ervi is specifically for the larger eliptical shaped species including Macrosiphum euphorbiae (potato aphid) and Aulacorthum solani (glasshouse potato aphid). Several other aphid species such as the pea aphid are also parasitised. Aphelinus abdominalis controls a wide range of aphid species including Macrosiphum euphorbiae (potato aphid) and Aulacorthum solani (glasshouse potato aphid). It is not suitable for high infestations, especially of Myzus persicae (peach potato aphid) and Aphis gossypii (melon cotton aphid) when Aphidius colemani should be used. WHEN TO USE: Aphidius colemani: Early season as a preventative. Aphidius ervi: At the very first sign of aphids. Aphelinus abdominalis: Introduce at first sign of aphid attack as it has a longer life cycle than other aphid parasites. RATE OF USE: Aphidius colemani: 1 wasp/mummy per 2 m2 per week. Increase to 5 per m2 for 3 weeks if small aphid colonies are present. Aphidius ervi: 1 wasp/mummy per 2 m2 per week. Increase as above if necessary. Aphelinus abdominalis: 1 wasp/mummy per 2 m2 every two weeks until parasite establishment or aphids threat is reduced. ACE Mix or CE Mix: 1 wasp per m2. Fargro can advise on the best species or mixture to use.
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Aphidoline a (Aphidoletes aphidimyza) |
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HOW IT WORKS: Introduced as cocoons from which adults emerge. The blister packs enable monitoring and mating of adults on release. Adults lay eggs next to aphid colonies located by the scent of honeydew, larvae develop as tiny orange maggots that feed on aphids. One larva can survive on 5 large aphids but will kill up to 35 more. SPECIES CONTROLLED: Larvae feed on over 60 aphid species, including those common in field and protected crops within the UK. WHEN TO USE: Between March and September for re-cycling generations, however they can be used all year round if supplementary lighting is available. RATE OF USE: Normally 1 cocoon per m2 per week, for local hotspots increase the rate up to 10 per m2.
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Chrysoline c (Chrysoperla carnea) |
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HOW IT WORKS: An extremely active predator with large pincers used to attack, hold and suck the juices from the pest body. SPECIES CONTROLLED: Effective at controlling established aphid populations. Also feed on whitefly eggs and scales, thrip larvae, moth eggs, young mealybug nymphs and other small insects. WHEN TO USE: Use on established populations of aphids or other pest colonies, ideal for organic crops. RATE OF USE: 10 larvae per 1 m2 repeat after 2-3 weeks.
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Adaline b (Adalia bipunctata) |
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TYPE: A species of ladybird native to the UK. The adult beetle and larvae are both predatory. HOW IT WORKS: Adults and larvae feed on most types of aphid. SPECIES CONTROLLED: Most types of aphid. WHEN TO USE: Apply as a curative. RATE OF USE: Consult Fargro.
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Vertalec (Verticillium lecanii) |
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TYPE: A microbial insecticide containing fungal spores of a specific strain of Verticillium lecanii. Vertalec is registered as a professional pesticide under MAFF 04781 and contains 2.5%w/w Verticillium lecanii spore powder. (Users require training in pesticide use). HOW IT WORKS: Vertalec is applied as a spray. Under the correct environmental conditions the spores germinate and grow producing hyphae that penetrate into the body cavity of the aphid where they proliferate killing the insect. A new generation of spores may be produced causing an epidemic in the pest population. SPECIES CONTROLLED: Vertalec is infective to many aphid species. WHEN TO USE: Requires a minimum temperature of 18oC and relative humidity of at least 80% (95% at the leaf surface). WHERE TO USE: Approved crops include protected aubergine, broad bean, cucumber, french bean, lettuce, sweet pepper, runner bean, tomato and ornamental plant production. RATE OF USE: 2 g/l or 6 kg/ha for high volume. 250 g/ha/50 l water low volume application to chrysanthemums. ALWAYS READ THE LABEL. USE PESTICIDES SAFELY. Users of Vertalec require training in pesticide use.
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Specifications may differ from those listed here and change without notice. © 2007 Copyright of Fargro Ltd and its suppliers. www.fargro.co.uk |
