Performance of ten insecticides with foliage treatments on hazelnut and one applied in the soil for control of Myzocallis coryli (Goeze) (Hemiptera: Homoptera: Aphididae)

Alfonso Aguilera P.1, Carlos Pacheco V.2, Jaime Guerrero C.2

A chemical control trial was carried out from February to April of 1993 at Temuco, IX Region of Chile under greenhouse condition on filbert aphid, Myzocallis coryli (Goeze) (Hemiptera: Homoptera: Aphididae), in arder to assess the efect of ten insecticides on foliage of hazelnut and one in the soil. Insecticides applied on foliage were dimethoate + chlorpirifos (33.3 + 41.70 cc a.i./100 L); demetonS- methyl (30 cc a.i./100 L), mineral oil (2 L/100 L) ; vamidothion (80 cc a.i./100 L); imidacloprid (43.75 g a.i./100 L); pirimicarb (25 g a.i./100 L), diflubenzuron (5 cc a.i./100 L) and permethrin (7.5 cc a.i./100 L); disulfoton (0.1 g a.i. per plant) was applied in soil. Omethoate, dimethoate + chlorpirifos, vamidothion and imidacloprid had the best performance. Also disulfoton seven days after treatment had one of the best control. No differences were seen among other products compared with untreated check.

Keywords: Myzocallis coryli, filbert aphid, insecticides, hazelnut.
1 Centro Regional de Investigación Carillanca (INlA). Casilla 58-O, Temuco, Chile.
2 Facultad de Ciencias Agropecuarias y Forestales, Universidad de La Frontera, Casilla 54-D. Temuco, Chile.