Elasmopalpus lignosellus (Zeller). Common Names. lesser cornstalk borer. Author: Dr. Steve L. Brown, Dr. Will Hudson, University of Georgia. J Econ Entomol. Apr;(2) Effects of Elasmopalpus lignosellus ( Lepidoptera: Pyralidae) damage on sugarcane yield. Sandhu HS(1), Nuessly GS, . Environ Entomol. Jun;39(3) doi: /EN Temperature- dependent development of Elasmopalpus lignosellus (Lepidoptera: Pyralidae).
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BraconidaeGeron aridus Painter Diptera: Weather Back to Top Lesser cornstalk borers seem to be adapted for hot, xeric conditions, and therefore tend to be more abundant and damaging following unusually warm, dry weather.
It is a pest of several economically important crops. Photograph by Harsimran Gill, University of Florida. Head and cervical shield shiny brownish black; body pale green with longitudinal, somewhat broken white and purple stripes. Lesser cornstalk borers seem to be adapted for hot, xeric conditions, and therefore tend to be more abundant and damaging following unusually warm, dry weather.
Developmental time decreased with increase in temperature from 13 to 33 degrees C and increased markedly at 36 degrees C in all immature stages. Larvae construct radiating tubelike shelters of silk, soil, and excrement near the root collar just below the soil surface. The eggs are oval, measuring about 0. Castner, University of Florida.
Photograph by John L. At rest, the female moth is often charcoal-colored Biddle et al. Frequent irrigation is also an important agronomic practice for the management of lesser cornstalk borer because moist soils discourage female moths from laying eggs and elasmopalpjs suppress larval populations in the soil. Modified planting practices have long been used to minimize crop loss.
The first sign of infestation in forest tree nurseries is wilting foliage. These results indicate that compensation in response to E. elasmopallpus
Elasmopalpus – Wikipedia
Pempelia lignosella Zeller, Pempelia tartarella Zeller, Pempelia tartarellus Dasypyga carbonella Hulst, Dasypyga carbonellus Pempelia incautella Zeller, Elasmopalpus incautellus Pempelia major Zeller, Elasmopalpus major Elasmopalpus anthracellus Ragonot, Elasmopalpus puer Dyar, The relationship between borer-days and larval abundance is nonlinear, and small increases in borer-days beyond 10 results in large increases in larval abundance.
Total development from egg deposition to adult emergence ranged from Cocoons measure about 16 mm in length and 6 mm in width. The larval stage causes damage when it feeds upon, and tunnels within, the stems of plants.
Ichneumonidaeand Stomatomyia floridensis Townsend Diptera: This page was last edited on 7 Julyat Elasmopalpus Adult male Adult female Scientific classification Kingdom: Retrieved from ” https: A 2-yr greenhouse experiment was conducted to examine sugarcane variety and plant age-specific feeding responses to E.
Brownish moth with wingspan of 17 to 25 mm Luginbill and Ainslee Natural enemies generally did not greatly affect population levels of lesser cornstalk borer, due to its subterranean habits, silken webbing, and sporadic nature.
Moth Photographers Group – Elasmopalpus lignosellus –
The larvae bore into the stalk base near the soil surface causing damage to vascular tissues that result in these “dead hearts” symptoms and also allow pathogens to enter into the plant Smith and Ota Adult pheromone trap catches and flush counts are elasmopzlpus Funderburk et al. As seedlings begin to die, they may remain upright or fall over. The tip of the abdomen is marked by a row of six hooked spines. In Georgia, Leuck reported that due to the semi-subterranean nature of lesser cornstalk borer, it fed on and damaged seedlings and mature soybean plants above and below the soil surface.
Adults are attracted to light traps, but are difficult to monitor with this technique because lesser cornstalk borer moths are difficult to distinguish from many other species.
Discussion View source History. Parasites are abundant ArnaudKrombein and others On peanuts, this species mostly occurs in noneconomic densities, but sporadic outbreaks are associated with hot and dry climatic conditions Smith and Barfield In serious borer infestations, insecticides can be applied to nursery beds as soil drenches; this may have to be repeated several times because adequate exposure of larvae to the chemical is difficult, as they retreat into their silklined shelters when disturbed Dixon b.
Pyralidaelarvae on sugarcane a complex hybrid of Saccharum spp. Moths emerge during early June in southern Georgia and are caught almost continually in light traps through Augus Leuck Throughout the southern half of the United States but most damaging in sandy soil along the south Atlantic and Gulf Coasts.
However, crop culture that uses conservation tillage i. Head capsules are dark in color, and measure about 0. Female moths oviposit eggs in late summer and fall in Kentucky Bessinwhile in Florida, we observed heavy oviposition in spring and early summer.
If the number of borer-days equals or exceeds 10, damage is likely.
Effects of Elasmopalpus lignosellus (Lepidoptera: Pyralidae) damage on sugarcane yield.
Photograph by James L. Price, University of Florida. If borer days equals 5 to 9, then damage is possible and fields should be scouted. Adults are generally brownish with narrow and elongate forewings with oblique distal margins.
Feeding by lesser cornstalk borer, Elasmopalpus lignosellus Zeller Lepidoptera: