(=T. brasiliensis auctt., T. brasiliense auctt.)
|
Taxonomic position |
Hymenoptera: Trichogrammatidae |
 |
|
Years of introduction |
1964, 1968, 1982, 2007 | |
|
Sources |
"T. brasiliensis": South America via
California (1968, 1982) T. pretiosum: USA (1964); Mexico (1968); France (2007) |
|
|
Target pests |
"T. brasiliensis" was introduced for use against sugarcane borers, Chilo infuscatellus (Snellen), C. sacchariphagus indicus (Kapur), C. auricilius (Dudgeon), C. tumidicostalis (Hampson), Scirpophaga excerptalis (Walker) and Acigona steniellus (Hampson); cotton bollworms, Helicoverpa armigera (Huebner), Pectinophora gossypiella (Saunders) and Earias spp. T. pretiosum was introduced originally for use against Helicoverpa armigera (Huebner). A thelytokous population has been introduced from INRA, France, in 2007. |
 |
|
Crops |
Sugarcane, cotton, tomato, chickpea and several other crops |
|
|
Present status |
Recovered, but not established | |
|
Notes |
The true T. brasiliensis belongs to the genus Trichogrammatoidea. The species introduced as 'T. brasiliensis' for use against sugarcane borers is actually T. pretiosum as confirmed by morphological and molecular evidence (Nagaraja et al., 2008). All the Indian literature pertaining to T. brasiliensis from India, hence, most probably involve T. pretiosum. The latest introduction from INRA, France (2007) is a thelytokous form. |
|
|
References 1. Nagaraja, H., Gupta, A., Lalitha, Y., Mohanraj, P. and Jalali, S.K. 2008. On the true identity of Trichogramma brasiliensis (Ashmead) (Hymenoptera: Trichogrammatidae) being used in India. Journal of Biological Control, 22: 255-260.
2. Nagarkatti, S. and Singh, S.P. 1989. Importation and establishment of new natural enemies of Heliothis spp. (Lep.: Noctuidae) into India, pp.375-385. In: King E.G. & Jackson, R.D. (Eds) 1989. Proceedings of the Workshop on Biological Control of Heliothis: Increasing the Effectiveness of Natural Enemies. 11-15th November, 1985, New Delhi, India. Far Eastern Regional Research Office, USDA, New Delhi, India, 550 p.
3. Sankaran, T. 1974. Natural enemies introduced in recent years for biological control of agricultural pests in India. Indian Journal of Agricultural Sciences, 44 (7): 425-433. |
||