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Plantwise Technical Factsheet

green looper caterpillar (Chrysodeixis eriosoma)

Host plants / species affected
Abelmoschus esculentus (okra)
Ageratum
Alcea rosea (Hollyhock)
Amaranthus hybridus (smooth pigweed)
Armoracia rusticana (horseradish)
Aster
Beta vulgaris (beetroot)
Borago officinalis (Borage)
Brassica oleracea (cabbages, cauliflowers)
Brassica rapa subsp. oleifera (turnip rape)
Brassica rapa subsp. pekinensis
Brugmansia candida (angel's trumpet)
Buddleja davidii (butterfly bush)
Cajanus cajan (pigeon pea)
Capsicum annuum (bell pepper)
Carica papaya (pawpaw)
Chenopodium album (fat hen)
Chrysanthemum (daisy)
Cicer arietinum (chickpea)
Cirsium vulgare (spear thistle)
Citrullus lanatus (watermelon)
Coleus blumei (common coleus)
Cucumis melo (melon)
Cucumis sativus (cucumber)
Cucurbita pepo (marrow)
Cyphomandra betacea (tree tomato)
Dahlia
Dahlia pinnata (garden dahlia)
Dianthus caryophyllus (carnation)
Digitalis purpurea (foxglove)
Fatsia japonica (Japanese aralia)
Geranium (cranesbill)
Glycine max (soyabean)
Helianthus annuus (sunflower)
Helianthus tuberosus (Jerusalem artichoke)
Ipomoea batatas (sweet potato)
Lactuca sativa (lettuce)
Lilium (lily)
Medicago sativa (lucerne)
Melissa officinalis (Lemon balm)
Mentha (mints)
Mentha spicata (Spear mint)
Myosotidium hortensiana (Chatham Island forget-me-not)
Myosotis (forget-me-nots)
Nicotiana tabacum (tobacco)
Ocimum basilicum (basil)
Origanum majorana (sweet marjoram)
Passiflora edulis (passionfruit)
Pelargonium (pelargoniums)
Phaseolus vulgaris (common bean)
Physalis peruviana (Cape gooseberry)
Pisum sativum (pea)
Plantago (Plantain)
Polyphagous (polyphagous)
Raphanus sativus (radish)
Rheum hybridum (rhubarb)
Salvia (sage)
Senecio bicolor (dusty miller)
Solanum lycopersicum (tomato)
Solanum melongena (aubergine)
Solanum tuberosum (potato)
Thymus vulgaris (thyme)
Trifolium alexandrinum (Berseem clover)
Urtica urens (annual nettle)
Verbascum thapsus (common mullein)
Viola (violet)
Zea mays (maize)
List of symptoms/signs
Fruit  -  external feeding
Fruit  -  frass visible
Leaves  -  external feeding
Leaves  -  frass visible
Whole plant  -  external feeding
Whole plant  -  frass visible
Symptoms
The early larval stages of C. eriosoma feed on the underside of the lower leaves, grazing clear membranous 'windows' in them by eating part of the epidermis and the underlying tissue through to the upper leaf surface. Later larval stages will cut large, ragged holes through leaves and in heavy infestations can completely defoliate plants and damage fruit (Goodyer, 1977).
Prevention and control

Cultural Control

Indian mustard (Brassica juncea) showed potential for use as a trap crop for Hellula undalis, Trichoplusia ni and C. eriosoma in Hawaii, USA (Luther et al., 1996).

Control methods of C. eriosoma in gardens or horticultural settings include hand picking of larvae (Goodyer 1977).

Chemical Control

Due to the variable regulations around (de-)registration of pesticides, we are for the moment not including any specific chemical control recommendations. For further information, we recommend you visit the following resources:


Impact
C. eriosoma is a serious horticultural pest in New Zealand (Roberts, 1979), and a pest of soyabean in Indonesia (Talekar, 1987) and Australia (Cameron et al., 1986). C. eriosoma constitutes part of a lepidopteran complex that affects cabbage production in Hawaii (Luther et al., 1996). Cabbage and chickpea production in India is also threatened by C. eriosoma (Tripathi and Akhtar, 1988; Tripathi and Shari, 1992).
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