Biology of the Most Widely Distributed Sugarcane Stem Borers, Diatraea spp. (Lepidoptera: Crambidae), in Colombia
Most studies on insect biology and ecology of sugarcane borers have focused on Diatraea saccharalis (Fabricius), the most widely distributed species in the Americas. Little information is available on the biology of other borer species present in Colombia, such as D. indigenella Dyar & Heinrich...
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Veröffentlicht in: | Neotropical entomology 2022-12, Vol.51 (6), p.877-885 |
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Sprache: | eng |
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Zusammenfassung: | Most studies on insect biology and ecology of sugarcane borers have focused on
Diatraea saccharalis
(Fabricius), the most widely distributed species in the Americas. Little information is available on the biology of other borer species present in Colombia, such as
D. indigenella
Dyar & Heinrich,
D. busckella
Dyar & heinrich, and
D. tabernella
Dyar, that present greater expansion and damage in sugarcane-growing regions. The biology of all four species was accordingly studied under laboratory conditions.
Diatraea saccharalis
presented the shortest development time (39.4 days) and
D. busckella
the longest (58.2 days). Immature survival was higher for
D. saccharalis
(83%) and
D. tabernella
(77%), with the latter also presenting the highest pupal weight (256.6 mg). Observations on reproduction indicate that
D. tabernella
develops a larger number of egg masses per female (67.3) as compared with
D. saccharalis
(28.7). All three species spent more time in the pupal stage and resulted in greater pupal size than
D. saccharalis
; in particular,
D. indigenella
showed longer female longevity than
D. saccharalis
. High immature survival rate and greater reproductive success in
D. tabernella
could potentially generate a larger population in the field, whereas
D. busckella
takes longer to complete its development, thus increasing the chances of causing greater injury to sugarcane plants. Discussion on biology, ecology, and pest management of these little-known species is done using as model the better-known
D. saccharalis
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ISSN: | 1678-8052 1678-8052 |
DOI: | 10.1007/s13744-022-00990-7 |