‘L 79‐1002’ (Reg. No. CV‐132, PI 651501) sugarcane (a complex hybrid of Saccharum officinarum L., S. spontaneum barberi Jeswiet, and sinense Roxb. amend. Jeswiet) was released on 26 Apr. 2007 by the Louisiana State University Agricultural Center in cooperation with USDA‐ARS American Sugarcane League, Inc. The cross for L 79‐1002, a F 1 hybrid, made 1974 using ‘CP 52‐68’ as female parent Tainan, clone, male parent. Initial clonal selection done single stools. Testing from 1976 through 1983...

Infestations and damage to sugarcane by the borer, Diatraea saccharalis (F.), increased 53% 69%, respectively, following one application of mirex field plots for control red imported fire ant, Solenopsis invicta Buren. Decrease in populations arthropod predators, especially S. invicta, carabids, staphylinids was responsible borer populations. Mirex did not appear affect spider populations, but decreased numbers crickets. Azinphozmethyl applied both spiders only ant species collected...

Sugarcane (Saccharum spp.) in Louisiana is colonized by two aphid species, the sugarcane aphid, Melanaphis sacchari (Zehntner), and yellow Sipha flava (Forbes) (Hemiptera: Aphididae). The main problem associated with M. transmission of leaf virus, a casual agent disease whose absence has been added to certification standards for micropropagated Louisiana. Greenhouse studies were conducted categorize dominant commercial cultivars their ability tolerate injury express antixenotic or antibiotic...

The Mexican rice borer, Eoreuma loftini (Dyar) (Lepidoptera: Crambidae), is an invasive pest of sugarcane, Saccharum spp., rice, Oryza sativa L., and other graminaceous crops in the Gulf Coast region United States. Traps baited with E. female sex pheromones were used to document establishment distribution near noncrop hosts seven southwest Louisiana parishes from 2009 2013. Additional field surveys documented larval infestations commercial sugarcane rice. After its initial detection 2008, no...

The Mexican rice borer, Eoreuma loftini (Dyar) (Lepidoptera: Crambidae), is an invasive pest that was first introduced into southern Texas in 1980 and has been expanding its range eastward along the United States Gulf Coast. attacks (Oryza sativa L.), sugarcane (Saccharum spp.), corn (Zea mays other graminaceous crops, establishment Louisiana expected to have severe economic impacts on crop production. Range expansion population distribution of E. were monitored with a network 77 pheromone...

A 2-yr field study conducted in Texas to evaluate the effect of several management strategies on Mexican rice borer, Eoreuma loftini (Dyar), sugarcane, Saccharum spp. hybrids, showed that irrigation reduced injury both susceptible (LCP 85–384) and resistant (HoCP 85–845) cultivars by 2.5-fold. Cultivar LCP 85–384 was more than HoCP 85–845 based moth production. Irrigation, host plant resistance, insecticide applications tebufenozide decreased from 70% bored internodes <10% during years. The...

A 3-yr study done to evaluate sugarcane, Saccharum officinarum L., cultivars for resistance sugarcane borer, Diatraea saccharalis (F.), indicated the need examine effect of on areawide pest populations in addition plant injury from attack. Evaluation percentage bored internodes has traditionally served as primary criterion quantify borers. However, this index measures, cultivar only until penetration by young larvae into stalk. Using emergence holes borer seasonal record adult emergence, a...

During a 2-yr study investigating the fecundity of sugarcane borer, Diatraea saccharalis (F.), 607 pupae were collected on four gramineous hosts. Weight, length, and diameter borer corn, Zea mays L. cv. Merrit, borer-susceptible (a complex hybrid Saccharum spp.) variety, CP 61-37, greater (P < 0.05) than those johnsongrass, Sorghum halapense (L.) Persoon. Female moderately resistant 65-357, weighed significantly less shorter 61-37 or corn. The sex ratio was independent host plant. best model...

A 3-year study on southeastern Louisiana sugarcane illustrated the beneficial impact of ground vegetation predation enhancement. Abundance and diversity both ground- foliage-associated predators prey were higher in weedy than weed-free habitats. The red imported fire ant, Solenopsis invicta Buren, a major predator key insect pest, borer, Diatraea saccharalis (F.), was more abundant (17 mounds per hal (5 ha) Foraging S. invicta, however, slightly Azinphosmethyl, commonly used for D. control,...

The Mexican rice borer, Eoreuma loftini (Dyar) (Lepidoptera: Crambidae), is an invasive species that originated from Mexico, and it threatening to cause major economic losses sugarcane, Saccharum spp., rice, Oryza sativa L., industries in Louisiana. insect expected reach sugarcane production areas Louisiana by 2008, infest all of 2035. When becomes infested, annual yield 030220 million would be for a cultivar comparable susceptibility LCP 85-384 (assuming this planted on 100% the area). This...

The Mexican rice borer, Eoreuma loftini (Dyar) (Lepidoptera: Crambidae), is an invasive species that originated from Mexico, and it threatening to cause major economic losses sugarcane, Saccharum spp., rice, Oryza sativa L., industries in Louisiana. insect expected reach sugarcane production areas Louisiana by 2008, infest all of 2035. When becomes infested, annual yield $220 million would be for a cultivar comparable susceptibility LCP 85-384 (assuming this planted on 100% the area). This...

A three-treatment aerial application insecticide experiment was conducted in five commercial sugarcane, Saccharum spp., fields south Texas to evaluate the use of pheromone traps for improving chemical control Mexican rice borer, Eoreuma loftini (Dyar), 2009 and 2010. threshold 20 moths/trap/wk used initiate monitoring larval infestations. The percentage stalks with larvae on plant surfaces directly related number moths trapped. Reductions borer injury adult emergence were detected when a >5%...

The Mexican rice borer, Eoreuma loftini (Dyar), is a major pest of sugarcane (hybrids Saccharum spp.) in Louisiana and Texas. Resistance to E. was evaluated 51 commercial experimental cultivars sugarcane, energycane spp.), sorghum [ Sorghum bicolor (L.) Moench hybrids spp.] four replicated small plot field experiments from 2009 2012. A relative resistance ratio developed compare levels susceptibility among based on the percentage bored internodes survival adulthood. This index able separate...

A 2-yr study to evaluate Louisiana and Texas sugarcane, Saccharum spp., cultivars for resistance the Mexican rice borer, Eoreuma loftini (Dyar) was conducted in two locations Texas, chosen having different infestation levels. Criteria assessment of included percentage bored internodes adult emergence holes, latter used determine relative impact each cultivar on potential areawide buildup or reduction E. populations. recently released cultivar, HoCP 85-845, seemed lose a portion its under...

A 3-yr split-split-plot study was conducted to evaluate the contributions of arthropod predation, varietal resistance, and insecticidal control toward management sugarcane borer, Diatraea saccharalis (F.) in (a complex hybrid Saccharum spp.). The helped quantify value multiple tactics pest management. Insecticidal predominant factor preventing plant injury by supplying <60% overall control. However, resistance almost as effective at suppressing moth emergence, each contributing 42% 47%...

Oviposition preference studies of the Mexican rice borer, Eoreuma loftini (Dyar), on sugarcane, Saccharum spp., and rice, Oryza sativa L., showed that drought stressed sugarcane was 1.8-fold more attractive based egg masses/plant than well watered sugarcane. The E. susceptible cultivar LCP 85-384 1.6-fold HoCP 85-845 numbers eggs per mass. Egg masses were 9.2-fold abundant 2.3-fold larger rice. Rice, however, preferred to a plant biomass basis. occurred exclusively dry leaf material, which...

‘L 99‐226’ (Reg. No. CV‐138, PI 655533) sugarcane (a complex hybrid of Saccharum officinarum L., S. barberi Jeswiet, spontaneum and sinense Roxb. amend. Jeswiet) was released on 25 Apr. 2006 by the Louisiana State University Agricultural Center (LSU AgCenter) in cooperation with USDA–ARS American Sugar Cane League, Inc. L 99‐226 because its high sugar cane yields along excellent sucrose content. Data from 93 outfield trials indicate that produced approximately 33% greater yield 9% content...

The Mexican rice borer, Eoreuma loftini (Dyar), is native to Mexico, and has been reported in the states of Baja California, Colima, Hustecas, Jalisco, Michoacan, Nayarit, Nuevo Leon, Oaxaca, San Luis Potosi, Sinaloa, Sonora, Tamaulipas, Veracruz, Yucatan (Morill 1925; Van Zwaluwenburg 1926; Riess 1981; Johnson 1984; Rodriguez-del-Bosque et al. 1989; ReayJones 2007). Eoreuma. was originally described by Dyar (1917) as a member genus Chilo Zincken from specimen collected Arizona, U.S.A....

Infestations of two stem borers, Eoreuma loftini (Dyar) and Diatraea saccharalis (F.) (Lepidoptera: Crambidae), were compared in noncrop grasses adjacent to rice (Oryza sativa L.) fields. Three farms the Texas Gulf Coast production area surveyed every 6-8 wk between 2007 2009 using quadrat sampling along transects. Although D. densities relatively low, E. average ranged from 0.3 5.7 immatures per m2 throughout 2-yr period. Early annual including ryegrass, Lolium spp., brome, Bromus infested...