Abstract
Onion maggot Delia alliaria Fonseca is considered as anew record a key pest on onion in Iraq. Its also exists in many parts of the world such as Egypt and some part of Europe, which can cause an economic losses ranged between (20 – 60) %. Field studies were conducted at the College of Agriculture, Baghdad to evaluate the effectiveness of two types of traps baited with onion extract lure. Results indicated the superiority of Tephri traps which caught significantly higher of onion maggot adults Nursery and onion field. In Nursery Tephri traps catches were 3.11, 5.11 for females and males, respectively, compared with 1.05, 1.40 for the local trap respectively. Sex ratio was 38: 62 and 43: 57 for Tephri and local traps and in favor of males. In the field traps catches were increased for the two types of traps reaching a numbers of 8.56, 10.84 females and males respectively in Tephri traps Compared with 4.86, 6.13 for the local trap . Sex ratio were for the two types of traps were 44:56 and in favor of males .We concluded from that onion extract lure may be used in Tephri raps because of its low cost and easy prepared by the farmers for monitoring and control of the onion maggot Delia alliaria especially in
OrganicAgriculture
