| Reinert, J. A., P. Busey,
and F. G. Bilz. 1986. Old World St. Augustinegrasses resistant
to the southern chinch bug (Heteroptera:Lygaeidae). J. Econ.
Entomol. 79:1073-1075.
Abstract
Several introduced clones of St. Augustinegrass, Stenotaphrum
secundatum (Walt.) Kuntze and S. dimidiatum (L.)
Brongn., from the Republic of South Africa, Tanzania, Zimbabwe,
and Malagasy Republic exhibited high levels of resistance
(antibiosis > 'Floratam', a resistant cultivar) to the
southern chinch bug, Blissus insularis Barber. Resistance
of 37 Stenotaphrum clones was evaluated on the basis
of mortality of field-collected adult chinch bugs confined
for 7 days with grass stolon terminals in plastic bags. Only
polyploid St. Augustinegrasses were antibiotic to B. insularis.
Resistance was found in both Old and New World clones, but
not all polyploid St. Augustinegrass clones were resistant
to the southern chinch bug.
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