Rp. Deleon et al., FIELD OBSERVATIONS ON THE BIOLOGY OF METR IONA-ELATIOR (COL, CHRYSOMELIDAE) ON SOLANUM-ELAEAGNIFOLIUM (SOLANACEAE) FROM URUGUAY, Entomophaga, 38(4), 1993, pp. 461-464
Specimens of Metriona elatior were found feeding on leaves of the silv
erleaf nightshade, Solanum elaeagnifolium, from the eastern of Uruguay
since 1984. According to a field study the young leaves were skeleton
ized since spring to early autumn by larvae and adults. Oothecae and p
upae were found mainly on old leaves. The egg mean volume was of 0.614
mm3. Young plants of the weed were always killed after massive natura
l infections of M. elatior. Therefore, this tortoise leaf-beetle may b
e studied as a potential biocontrol agent on populations of S. elaeagn
ifolium.