INFESTATION, SEX‐RATIO AND DAMAGE BY MELANAGROMYZA OBTUSA (DIPTERA: AGROMYZIDAE) TO MOGHANIA MACROPHYLLA SEEDS IN THE FIELD

Abstract

Seeds of Moghania macrophylla are important for growing of the host plants for lac and the pods of it have been found damaged by the fly, Melanagromyza obtusa from November to January. The percentage of infestation of the pods by this fly, varies from 4% to 74%. The average percentage of adult emergence is 87%, the sex‐ratio is 1.26:1, and loss in weight in 100 g of seeds is 63.5%. Zusammenfassung BEFALL, GESCHLECHTERVERHÄLTNIS UND SCHADEN VON MELANAGROMYZA OBTUSA (DIPTERA: AGROMYZIDAE) AN SAMEN VON MOGHANIA MACROPHYLLA IM FREILAND Moghania macrophylla ist eine der bestgeëignetsten Wirtspflanzen für Lackinsekten und deshalb die Samenerzeugung dieser Pflanze wichtig. Während der Monate November bis Januar wurden 4–70% der Hülsen schwer von der Fliege Melanagromyza obtusa befallen befunden. Der durchschnittliche Schlupfprozentsatz der Fliegen betrug 87%, das Geschlechterverhältnis (♂♂: ♀♀) 1, 26: 1 und der Gewichtsverlust für 100 g der befallenen Samen 63, 5%.

Biology and management of Melanagromyza obtusa (Malloch) (Diptera:Agromyzidae)

“…obtusa on host plants other than pigeonpea have not been well studied. Kulkarni (1966) found pods of K macrophyllu infested from mid-November through to mid-February. This plant supports M. obtusa in uncultivated areas and can produce flowers and pods in the summer (Sithanantham and Sehgal, 1985).…”

“…Pigeonpea and Flemingiu macrophyllu are the only commercially cultivated host plants. Fleminga macrophyllu, used as a host plant in the production of lac, is heavily attacked by M. obtusu (Kulkarni, 1966). Reports of five other agriculturally important plant species as hosts for M. obtusu are questioned.…”

Melanagromyza obtusa (Díptera: Agromyzidae), a new record for Colombia

“…and in a lesser degree in other Fabaceae, including Flemingia macrophylla (Willd.) Kuntze ex Merr., and Phaseolus radiatus L. (Kulkarni, 1966;Spencer, 1973;Ipe, 1974;Singh and Gupta, 1981;Shanower et al, 1998;Sharma et al, 2003;Moudgal et al, 2008;Palacios-Torres et al, 2010;Araúz et al, 2013;Korytkowski, 2014;EPPO, 2016).…”

“…This is the first record of M. obtusa for Colombia. The species distribution is known from Asia (China-Taiwan), Flores Island (Indonesia), India (Assam, Bihar, Delhi, Maharashtra, Uttar Pradesh), Java (Indonesia), Malaysia, Sri Lanka, Bangladesh, Burma, Nepal, Pakistan, Philippines, Thailand, Vietnam, New Guinea, and Japan); also it is known in Australia (Queensland), Papua New Guinea, and in recent years records of this species are known from Florida (USA), the Dominican Republic, Puerto Rico, Haiti, Panama, and Peru (Kulkarni, 1966;Spencer, 1973;Ipe, 1974;Singh and Gupta, 1981;Shanower et al, 1998;Spencer, 1999;Sharma et al, 2003;Palacios-Torres et al, 2010;Araúz et al, 2013;Korytkowski, 2014;EPPO, 2016).…”