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Species Page

golden twin-spot moth

Chrysodeixis chalcites
This information is part of a full datasheet available in the Crop Protection Compendium (CPC). Find out more information on how to access the CPC.
©CAB International. Published under a CC-BY-NC-SA 4.0 licence.


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Host plants / species affected

Main hosts

show all species affected
Glycine max (soyabean)
Gossypium herbaceum (short staple cotton)
Nicotiana tabacum (tobacco)
Phaseolus (beans)
Phaseolus vulgaris (common bean)
Solanum lycopersicum (tomato)
Solanum tuberosum (potato)

List of symptoms / signs

Fruit - external feeding
Leaves - external feeding
Leaves - frass visible
Leaves - leaves rolled or folded
Leaves - webbing
Whole plant - external feeding
Whole plant - frass visible

Prevention and control

Pyrethroids such as cypermethrin or deltamethrin can give control of C. chalcites. Bassi et al. (2000) reported effective control of C. chalcites using indoxacarb (an oxadiazine) on vegetable crops in open fields and plastic houses in Italy. Misappropriate use of chemicals can lead to the development of resistance.

The insect growth regulator cyromazine, gave good control of second- and fourth-instar larvae of C. chalcites in glasshouses on tomatoes, lettuce and ornamentals when applied as a foliar spray (Veire and Degheele, 1994).

Different strains of Bacillus thuringiensis gave full control (100% efficacy) of C. chalcites when sprayed on tomatoes grown under net protection or in non-heated greenhouses in Sicily, Italy (Vacante et al., 2001). B. thuringiensis var. kurstaki is used to control C. chalcites in Israel (Broza and Sneh, 1994).

Toguebaye and Bouix (1983) demonstrated that the entomopathogenic fungus Nosema manierae can kill C. chalcites larvae in a few days.

Pheromone trapping has been used in field experiments in Israel. The most effective lure was found to be a mixture of 1 mg (Z)-7-dodecenyl acetate and 0.2 mg (Z)-9-tetradecenyl acetate absorbed on rubber septa (Dunkelblum et al., 1981). Pheromone trapping has been tried in glasshouses in the Netherlands but has not proved successful (Bos, 1983).

There are reports of natural enemies providing some control in protected conditions. The natural enemies predate or parasitize eggs and larvae. In Italian glasshouses the predatory pentatomid heteropterans Podisus maculiventris and P. nigrispinus both from North America have been tested as control agents (Vacante et al., 1996). In the UK, under controlled conditions the endoparasitic braconid Meteorus gyrator showed considerable potential as a biocontrol agent against C. chalcites. Parasitized larvae showed an 80% reduction in the weight of tomato leaf-tissue eaten although this level of control was not shown under less controlled, commercial conditions (Bell et al., 2000). Research has shown that because the eggs are laid singly and widely apart, parasitization and predation cannot progress efficiently. However, there has been some success. For example, Pizzol et al. (1997) released 7000 Trichogramma evanescens in 800 m² of a tomato crop grown under glass in France, on three occasions, 15 days apart. This action resulted in 82% of C. chalcites eggs being parasitized. In the Cape Verde Islands, the solitary endoparasitoid Cotesia marginiventris was introduced with some success for the control of C. chalcites in the field (Lobo Lima and Harten, 1985).

It is not only invertebrates that can be used as natural control agents. Linden (2000) describes an experiment where Alcippe brunnea, a bird found in dense forest undergrowth in India, successfully controlled C. chalcites on sweet peppers grown in glasshouses in the Netherlands.


C. chalcites is a polyphagous polyvoltine species that feeds on the foliage and fruit of vegetable, fruit and ornamental crops. It is considered as one of the most serious lepidopteran pests in many countries although quantitative data measuring damage is lacking.

C. chalcites is the major pest of tomato in Israel during the growing season (Broza and Sneh, 1994) causing considerable damage to the leaves and vegetative parts of the plant although it does not bore into the fruit (Harakly and Farag, 1975). In Israel it is also one of the most important noctuid pests of fodder crops such as lucerne and clover (Avidov and Harpaz, 1969). It also feeds on lucerne, maize and soyabean in Spain (Amate et al., 1998). In northern Italy, C. chalcites is one of the principal arthropod pests on soyabean (Zandigiacomo, 1990); it also attacks fields of artichokes (Ippolito and Parenzan, 1985). In Egypt, C. chalcites is considered as the most serious of all semi-looper pests attacking field fruit and vegetables. It is a serious pest of potato in Mauritius (Anon., 1984).

In protected cultivation, C. chalcites can occur at any time of the year (Linden, 1996) where it can reach high levels of infestation on vegetables and ornamental plants. It is reported as a serious pest in Bulgaria and Turkey (Loginova, 1992; Uygun and Ozgur, 1980) affecting tomato, cucumber and peppers. C. chalcites is one of the four main noctuid pests of glasshouse crops in Sicily (Inserra and Calabretta, 1985) and a continual pest in glasshouses in the Netherlands (Vos and Rutten, 1995) and Belgium (Veire, 1983).