1 edition of The Southwestern corn borer found in the catalog.
The Southwestern corn borer
|Statement||by E.G. Davis ... [et al.].|
|Series||Technical bulletin / United States Department of Agriculture -- no. 388, Technical bulletin (United States. Dept. of Agriculture) -- no. 388.|
|Contributions||Davis, E. G., United States. Dept. of Agriculture.|
|The Physical Object|
|Pagination||62 p. :|
|Number of Pages||62|
Southwestern corn borer larval survival on the transgenic corn hybrids was very low in both the field tests and laboratory bioassays. The high levels of resistance to fall armyworm and near immunity to southwestern corn borer of these transgenic corn hybrids provide the highest levels of resistance documented for fall armyworm and southwestern. The European corn borer, Ostrinia nubilalis (Hübner), southern cornstalk borer, Diatraea crambidoides (Grote) and southwestern corn borer, Diatraea grandiosella Dyar are primarily pests of corn in the Texas Panhandle. Caterpillars of European corn borers are brownish to pinkish with small dark spots on each body segment, whereas those of the.
southwestern corn borer (Diatraea grandiosella, Lepidoptera: Crambidae) is a well-known caterpillar pest of corn. Its biology is similar to European corn borer. The moths are dull white or buff-colored and about 1 inch long, although their size can vary. Southwestern corn borers (SWCB) lay flattened eggs. Southwestern Corn Borer Alert. Author: Glenn Studebaker, Extension Entomologist/IPM Coordinator. By Glenn Studebaker, Extension Entomologist/IPM Coordinator. Southwestern corn borer pheromone trap catches have jumped up this week in Woodruff county. Several traps hit above moths per trap per week.
Southwestern Corn Borer. Diatraea grandiosella (Dyar). During the growing season, this caterpillar has a white abdomen with conspicuous dark brown or black spots. It is similar in appearance to the European corn borer, but the latter has lighter spots on a browner background. During the winter the southwestern corn borer becomes pale yellow. Both the fall army worm, Spodoptera frugiperda (J.E. Smith), and the southwestern corn borer, Diatraea grandiosella Dyar, feed extensively on the leaves of corn, Zea mays L., in the southern USA. Their feeding can cause serious yield reductions. Several germplasm lines with resistance to leaf feeding by these two insect pests have been developed and released; however, only limited information.
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How long the southwestern corn borer has been in the United States is unknown. Apparently spreading northward from Mexico, it is believed to have entered Arizona, New Mexico, and Texas at about the same time. Gable and R. Epperson, in an unijublished manuscript on this species, record it from Lakewood,in.
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Southwestern corn borer in Kansas (Bulletin) [Donald Alden Wilbur] on *FREE* shipping on qualifying : Donald Alden Wilbur. by Ric Bessin, Extension Entomologist. University The Southwestern corn borer book Kentucky College of Agriculture.
During the late 70's it was regarded as one of the most serious insect pests of corn, but after more than a ten year period of not being reported in Kentucky, the southwestern corn borer (SWCB) has reappeared in Kentucky.
Biology and Management of Southwestern Corn Borer. May, (Life Cycle, Preferred host, damage, pheromone, over-wintering, conventional control, lower dry matter content, Trichogramma, yellow shafted flicker, early planting, effect of soil texture, no-till infestation).
Southwestern Corn Borer Traps, August 8, Although most corn across the state is beyond the susceptible stage, southwestern corn borer traps were very high in some counties with multiple traps exceeding moths per trap.
Drainage Tile in the Mississippi Delta Webinar Next Week. The southwestern corn borer (SWCB) is a well-known caterpillar pest of corn. Larvae are creamy white with large brown or black dots on each body segment and a dark head. Older larvae tunnel into the stalk, in ear shanks, or feed on ears until they pupate (usually inside the stalk).
European corn borer eggs. Photo Fall armyworm larva. Photo Flea beetle. Photo Differential grasshopper. Photo Maize billbug. Photo Seed corn maggot.
Photo Southwestern corn borer eggs. Insect Management Photos Photo Southwestern corn borer larva. Jeff Whitworth sent this photo. It has a copywrite mark on the original. MEXICAN FOOD FROM THE SOUTHWEST Recipes From Mexico - This little book explains some of the old, slower hand methods from Mexico of preparing food and employs some of the newer easier ways, like using canned and manufactured preparations.
It is much for your interest that the hand methods have been s: 1. The southwestern corn borer and the European corn borer have similar life histories. Overwintering larvae pupate in the spring and emerge as adults about 10 days later. Adults are active primarily at night but can be found during the day under leaves.
These moths lay eggs that produce the first generation of southwestern corn borers. The southwestern corn borer (Diatraea grandiosella Dyar, Lepidoptera: Crambidae) is one of the most important insect pests of non-Bt corn (Zea mays L.) in the southern region of the United estern corn borer is primarily distributed throughout the southern United States and Mexico (ChippendaleDavis and WilliamsWilliams et al.Knutson and Davis ).
Southwestern Corn Borer Trap Catches –July 1, Author: Glenn Studebaker, Extension Entomologist/IPM Coordinator. By Glenn Studebaker, Extension Entomologist/IPM Coordinator. Southwestern corn borer mothpheromone trap catches by county are reported in the link s remain low across most of the state.
In corn that is in the reproductive stage, early-stage southwestern corn borer larvae feed between husk leaves, on ear shoots and behind leaf sheaths. Late-stage larvae may feed on kernels, often near base of ear, but eventually tunnel into stalk and tunnel may be 12 inches long.
Learn more about the injury and pest symptoms and management considerations of this pest. Seasonal adaptations of populations of the southwestern corn borer, Diatraea grandiosella, obtained from south-central Mexico (19°N latitude) and southeast Missouri (37°N latitude) were length and temperature were found to serve as environmental cues to programme the larval diapause of both populations, but different critical values were observed.
Further evidence is presented to demonstrate the involvement of juvenile hormone (JH) in regulating diapause in the final larval stage of the southwestern corn borer. Diatraea grandiosella. JH titres in the haemolymph were measured throughout the entire diapause period.
Stalk borers are becoming more of a problem in corn, grain sorghum and rice fields in Louisiana. The most common insect borer species found in these crops include the southwestern corn borer (Figure 1), the sugarcane borer (Figure 2) and the European corn borer (Figure 3).
Although these borers cause severe damage to corn and grain sorghum, only the sugarcane borer and European corn borer. Get this from a library. Apanteles diatraeae, a braconid parasite of the southwestern corn borer. [E G Davis; United States. Department of Agriculture.]. Southwestern corn borers.
These include lady beetles, lacewings, spiders, and at least one species of extremely tiny wasps which parasitizes borer eggs. Flickers and other birds destroy many overwintering Southwestern corn borers in Louisiana and Mississippi, but such predation is a rarity on the wide expanse of the High Plains.
European and/or Southwestern Corn borer each summer. In many areas, there are two, possibly three flights of the cornborer moth each year. The second flight is usually more of a concern than the first, but corn borer larvae can cause damage regardless of when they appear.
Kentucky, the southwestern corn borer (SWCB) has reappeared in Kentucky. Sincethe southwestern corn borer has spread across the western half of Kentucky and it distribution now extends east to Nelson and Pulaski counties.
SWCB Biology While similar in biology to the European corn borer (ECB), the SWCB is the most difficult insect to control. Late-planted corn can be subject to increased damage from lepidopteran worm pests such as European corn borer, southwestern corn borer, fall armyworm and corn earworm.
Find tips for worm control in late-planted corn.Sincethe southwestern corn borer has spread across the western half of Kentucky and it distribution now extends to Nelson and Pulaski counties.
SWCB Biology While similar in biology to the European corn borer (ECB), the SWCB is the more difficult insect to control. The SWCB has two or more generations per year.Southwestern corn borer larvae initially have a reddish color but develop the characteristic off-white coloration and black spots by the second- or third-instar stage (Figure 1, right).
Four to six weeks are needed for the southwestern corn borer to complete its development from the egg to adult stage. Full-grown larvae (1 to 1 1/4 inches in.