| BIOLOGY OF CHLOROPHORUS ROBUSTIOR PIC, 1900 (COLEOPTERA:CERAMBYCIDAE), A NEW RECORD AND A NEW SAINFOIN (ONOBRYCHIS SATIVA LAM.) PEST FOR TURKEY |
GÖKSEL TOZLU A1 and RÜSTEM HAYAT A1
A1 Department of Plant Protection, Faculty of Agriculture, Ataturk University, 25240 Erzurum, Turkey
Chlorophorus robustior Pic, 1900 (Coleoptera: Cerambycidae) is a new record for the Turkish fauna and a new sainfoin (Onobrychis sativa Lam.) pest for Turkey. Its biology, damage, and infestation ratio were studied in Erzurum (Turkey) during 1996 and 1997. The biological stages of the pest are briefly described. The pest over winters within galleries in roots of sainfoin as mature larvae. Pupation in the galleries begins in mid-May. At the end of June, the adults appear. The females lay their eggs individually into the stem base 710 days after emerging. The first larva begins to construct a gallery in the root. Each gallery has one larva, and each plant has one gallery. The last in star larva over winters in the same gallery toward mid-September. Consequently, C. robustior produces one generation a year. Infestation level may reach up to1416%.
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