Study of Population Density Luffa Cylindrical at University of Baghdad

Leef luffa cylindrical back to the Cucurbitaceae family, is a climber plant leg goes from 5-15 m, leaves mutual pentagonal Altvsas and flowers and a single housing, the male cluster assembly and female individual yellow five-pointed stamens fruits cylindrical, his medical benefits for the treatment of cancer and renal anemia, rheumatism and the treatment of gout disease because it contains green sap rich chlorophyll a, mineral salts , enzymes , fats, and amino acids (Davis, 2008 ).

There are many species in the tropics and the ancient world and the modern and it luffa cylindrical and a wider spread in the tropics, there are the same in Iraq, either in India luffa acutangula (Chakravarty, 1976). Luffa cylindrical fiber is exposed to infection many from pests Insecticides or non Insecticides including Bemisia tabaci whitefly and aphids aphis gossypii and fly big melon Bactroceacucurbibae and hoof spending liriomyzasativae (Azzawi et al., 1990). 

As noted researcher (Stegmaior, 1966) that the Leaves diggers liriomyzasativae attacking a large number of vegetable crops and leguminous prefer Cucurbitaceae family, Solanaceae, and there are the rest of the plant families in Florida it is attacking the 40 host back to 10 botanical families. He added the researcher (Spencer, 1981) It pests economically important in northern Turkey. The damage caused by the female through spawning or feeding, which will be spots or leaves yellowing and hatched working larvae like bar tail or lines, the greater the age-increasing line length, width and overall movement between the leave tissue mizovel leave(Sharma et al., 1980) and the researcher ( Tran et al., 2008) that the types of Genus liriomyza found in South Asia, are merely the economic vegetable crops, at present the most important vegetable crops L. brifolii, L. huidobrensis, L. bryoniae and have a wide spread of South Asia. 

While (Mau and Martin, 2007) explained that the Leaves diggers stock liriomyzasativae multiple feeding and find on the 40 plant families, including the family Cucurbitaceae. pointed (Capinera, 2005) that species liriomyzasativae exist normally South Florida to California, Hawaii and South America. As he explained (Tran et al., 2008) that the types of Genus liriomyza pest present on the 50 crop of vegetable crops in Vietnam.And that the eggs to hatch and larva age needs for the development of the (7-9) days at a temperature of (25-30) ° c and the pupas takes (7-9) on development have been lengthened at a temperature of 15 ° c, they also need to supplement their life cycle at temperatures optimal 30°c for 15-day heat (Parrella, 1987). Found there are several ways to combat Among the best ways to maintain the security of the ecosystem pollution biological control, we find parasites natural enemies which have private parasitism strategies which increase with blight the pest and less with decline it (Zubaidi, 1992) as the record (Yildirim et al., 2011). 

The parasite (Walker, 1838) Diglyphusisaea who was one of the best parasites in the parasitism on the Leaves digger in Turkey. 

Due to the presence of The pest in the study area and the lack of previous studies on the luffa cylindrical was chosen this research, which aims to study the population density and recording natural enemies to them.