TRANSMISSION OF THE PINEWOOD NEMATODE, BURSAPHELENCHUS-XYLOPHILUS, TO SLASH PINE TREES AND LOG BOLTS BY A CERAMBYCID BEETLE, MONOCHAMUS-TITILLATOR, IN FLORIDA

  • 1 January 1984
    • journal article
    • research article
    • Vol. 16  (1) , 37-40
Abstract
Field-collected adults of the southern pine sawyer, M. titillator (F.) naturally infested with 4th-stage juveniles (dauerlarvae) of B. xylophilus (Steiner and Buhrer, 1934) Nickle, 1970, were maturation fed on excised shoots of typical slash pine, P. e. Engelm. var elliottii, for 21 days. During Aug. 1981, a male and female adult beetle were held in a sleeve cage placed on the terminal of a side branch of each of 7 replicate, healthy 10-yr-old slash pine trees. All 7 branch terminals showed evidence of beetle feeding on the bark after 1 wk, and pinewood nematodes were present in wood samples taken near these feeding sites. Four of the 7 trees showed wilt symptoms in 4-6 wk and died about 9 wk after beetle feeding. Pinewood nematodes were recovered from the roots and trunks of the dead trees. Each of 7 replicate slash pine log bolts was enclosed in a jar with a pair of the same beetles used in the sleeve cages. After 1 wk, wood underlying beetle oviposition sites in the bark of all replicate log bolts was infested with the pinewood nematode.

This publication has 0 references indexed in Scilit: