The size of larval populations of the saddle gall midge (Haplodiplosis marginata von Roser = H. equestris Wagner, Diptera, Cecidomyiidea) in wheat fields in the main cereal-growing areas of southern Belgium in 1970 and 1971


  • LATTEUR, G. (1972). The size of larval populations of the saddle gall midge (Haplodiplosis marginata von Roser = H. equestris Wagner, Diptera, Cecidomyiidea) in wheat fields in the main cereal-growing areas of southern Belgium in 1970 and 1971. Parasitica, 28: (1),
Type Journal Article
Year 1972
Title The size of larval populations of the saddle gall midge (Haplodiplosis marginata von Roser = H. equestris Wagner, Diptera, Cecidomyiidea) in wheat fields in the main cereal-growing areas of southern Belgium in 1970 and 1971
Journal Parasitica
Recnumber 182
Volume 28
Issue 1
Endnote Keywords wheat|cereals|agricultural entomology|Haplodiplosis equestris|
Abstract Further surveys of populations of Haplodiplosis equestris (Wagn.) in Belgium [cf. RAE/A 61, 1951] were carried out in 1970-71 in the main wheat-growing areas in the south of the country. In 1970, in only 10 of the 116 fields surveyed were there more than 5 galls/stem, which is considered the economic threshold; in the remainder, the average was 1.7 galls/stem. In 1971, the level of 5 galls/stem was found in only one field, the average for the other 154 fields surveyed being 0.7/stem. It is concluded that control measures would not be justified except in a limited number of fields.
Notes Cited Reference Count: 7 ref. Journal article French 2 fig.
Author address Station de Zoologie Applique de l'Etat, Ave. Marechal Juin, 8, B-5800 Gembloux, Belgium.
Lien ://19740514277
Authors LATTEUR, G.