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Re-evaluation of sugarcane borer (Lepidoptera: Crambidae) bioeconomics in Louisiana
Three plant-cane studies were conducted to re-evaluate the long-standing Sugarcane borer EIL level using the most recently released varieties of sugarcane and found that the value of 10% internodes bored at harvest as the economic injury level (EIL) remained unchanged.
Conventional Resistance of Experimental Maize Lines to Corn Earworm (Lepidoptera: Noctuidae), Fall Armyworm (Lepidoptera: Noctuidae), Southwestern Corn Borer (Lepidoptera: Crambidae), and Sugarcane
These resistant experimental lines of maize derived from a backcross breeding program will provide plant breeders with new sources of resistance to lepidopterous insects for the development of improved maize breeding populations.
An assessment of the genetic diversity within a collection ofSaccharum spontaneum L. with RAPD-PCR
A local collection of 33Saccharum spontanum L. spontaneum clones and two sugarcane cultivars were assessed for genetic variability using random amplified polymorphic DNA (RAPD)-PCR and one amplification product from the RAPD primer OPA-11 proved to be cultivar-specific and has been adopted for use in the authors' breeding program.
Impact of Cotesia flavipes (Hymenoptera: Braconidae) as an augmentative biocontrol agent for the sugarcane borer (Lepidoptera: Crambidae) on rice
The results suggest the cumulative seasonal damaging larval density (3rd or later instars) is negatively correlated with winter temperature, while maximum parasitoid density and maximum proportion parasitized are positively correlated with the cumulative seasonally damaging Larval density.
Research Reports: Movement and Establishment of Sugarcane Borer (Lepidoptera: Pyralidae) Larvae on Resistant and Susceptible Sugarcane
It is suggested that a major component of sugarcane's resistance to Sugarcane borer is reducing the frequency of the establishment of young larvae in the stalk.
Categorizing Sugarcane Cultivar Resistance to the Sugarcane Aphid and Yellow Sugarcane Aphid (Hemiptera: Aphididae)
Bacterialiosis is an important category of resistance in sugarcane to both aphid species, and HoCP 91–555 might provide useful germplasm for developing aphid resistant cultivars.
Monitoring and First Discovery of the Mexican Rice Borer Eoreuma loftini (Lepidoptera: Crambidae) in Louisiana
The Mexican rice borer, Eoreuma loftini (Dyar), is native to Mexico, and has been reported in the Mexican states of Baja California, Colima, Hustecas, Jalisco, Michoacan, Nayarit, Nuevo Leon, Oaxaca,
Broad-sense heritabilities, genetic correlations, and selection indices for sugarcane borer resistance and their relation to yield loss
The indices indicated that percentage bored internodes was the most effective single trait to reduce sugarcane borer damage, and if data collection costs were considered, then the subjectively assessed damage rating was themost expeditions of the traits examined.
Registration of Two Sugarcane Germplasm Clones with Antibiosis to the Sugarcane Borer (Lepidoptera: Crambidae)
The low adultemergence values and low larval weights suggest antibiosis as the mechanism of resistance to the sugarcane borer; antibiosis is a resistance mechanism not yet exploited for stem borer resistance in Louisiana.