A Moth Production Index for Evaluating Sugarcane Cultivars for Resistance to the Sugarcane Borer (Lepidoptera: Pyralidae)

Bessin, R. T.; Reagan, T. E.; Martin, F. A.

doi:10.1093/jee/83.1.221

Cited by 45 publications

(34 citation statements)

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“…In Louisiana E. loftini is expected to inßict substantial revenue losses (ReayÐJones et al 2008), and the need to develop management strategies is becoming urgent. In addition to reducing injury and increasing yield, control tactics that reduce adult emergence could aid in managing area-wide populations (Bessin et al 1990a) and slow the expansion of this invasive pest. Our Þndings on a new monitoring method, an intervention threshold, insecticide efÞcacy, and early instar behavior relative to varietal resistance and sugarcane plant phenology all contribute, in addition to providing suitable irrigation and avoidance of soil salinity (ReayÐJones et al 2005, Showler andCastro 2010a), toward the advancement of increasingly effective E. loftini IPM.…”

Section: Discussionmentioning

confidence: 99%

Improved Chemical Control for the Mexican Rice Borer (Lepidoptera: Crambidae) in Sugarcane: Larval Exposure, a Novel Scouting Method, and Efficacy of a Single Aerial Insecticide Application

Wilson¹,

Showler

Reagan³

et al. 2012

jnl. econ. entom.

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A three-treatment aerial application insecticide experiment was conducted in five commercial sugarcane, Saccharum spp., fields in south Texas to evaluate the use of pheromone traps for improving chemical control of the Mexican rice borer, Eoreuma loftini (Dyar), in 2009 and 2010. A threshold of 20 moths/trap/wk was used to initiate monitoring for larval infestations. The percentage of stalks with larvae on plant surfaces was directly related to the number of moths trapped. Reductions in borer injury and adult emergence were detected when a threshold of >5% of stalks with larvae present on plant surfaces was used to trigger insecticide applications. Novaluron provided superior control compared with beta-cyfluthrin; novaluron treated plots were associated with a 14% increase in sugar production. A greenhouse experiment investigating establishment and behavior of E. loftini larvae on two phenological stages of stalkborer resistant, HoCP 85-845, and susceptible, HoCP 00-950, sugarcane cultivars determined that more than half of larvae on HoCP 00-950 and > 25% on HoCP 85-845 tunneled inside leaf mid-ribs within 1 d of eclosion, protected therein from biological and chemical control tactics. Exposure time of larvae averaged < 1 wk for all treatments and was shortest on immature HoCP 00-950 and longest on mature HoCP 85-845. This study shows a short window of vulnerability of E. loftini larvae to insecticide applications, and demonstrates the potential utility of pheromone traps for improving insecticide intervention timing such that a single properly timed application may be all that is required.

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Section: Discussionmentioning

confidence: 99%

Improved Chemical Control for the Mexican Rice Borer (Lepidoptera: Crambidae) in Sugarcane: Larval Exposure, a Novel Scouting Method, and Efficacy of a Single Aerial Insecticide Application

Wilson¹,

Showler

Reagan³

et al. 2012

jnl. econ. entom.

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“…Similar varietal differences have been reported for damage caused by other pyralid stem borers. Bessin et al (1990) reported seasonal differences in injury by sugarcane borer, Diatraea saccharalis (F.) among tested sugarcane clones that may have been due to resistance to stalk entry or antibiosis (larval survival). Pfannenstiel and Meagher (1991) reported signiÞcant differences among sugarcane varieties to injury by the Mexican rice borer, Eoreuma loftini (Dyar).…”

Section: Discussionmentioning

confidence: 99%

Effects of Elasmopalpus lignosellus (Lepidoptera: Pyralidae) Damage on Sugarcane Yield

et al. 2011

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Feeding by lesser cornstalk borer, Elasmopalpus lignosellus (Zeller) (Lepidoptera: Pyralidae), larvae on sugarcane (a complex hybrid of Saccharum spp.) causes leaf damage, dead hearts, and dead plants that can result in stand and yield loss. A 2-yr greenhouse experiment was conducted to examine sugarcane variety and plant age-specific feeding responses to E. lignosellus. Plants growing from single-eye setts of three varieties were exposed to a single generation of E. lignosellus larvae beginning at the three-, five-, and seven-leaf stages. Results indicated that the physical damage and resulting yield loss of plants attacked by E. lignosellus larvae were dependent on the variety and leaf stage at which they were infested. Significantly more plant damage was observed in all three varieties when infested at the three- than at the seven-leaf stage. Larvae caused significantly more plant damage and reduced yield in CP 89-2143 than in CP 78-1628. Tiller production increased in CP78-1628 and CP 88-1762 when infested at the three-leaf stage, whereas tiller production, biomass and sugar yield decreased in CP 89-2143 when infested at all leaf stages, compared with the untreated control. There was no reduction in yield when CP 78-1628 was infested at the three- or five-leaf stages. Biomass was reduced in CP 88-1762 when plants were infested at any of the leaf stages, but sugar yield was reduced only when infested at the seven-leaf stage. These results indicate that compensation in response to E. lignosellus damage was variety dependent and declined with the delay in infestation time.

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“…In a previous study, Bessin & Reagan (1993) observed greater deadheart densities in 'CP 61-37' (D. saccharalis susceptible) than in 'CP 70-330' (resistant) during the spring. Cultivar resistance to D. saccharalis has traditionally been determined based on measures of mature stalk injury (% bored internodes), adult production (number of moth exit holes in stalks), and tolerance to injury (% yield loss relative to % bored internodes) (Bessin et al 1990;White et al 2008). When comparing 10 sugarcane cultivars with varying levels of resistance, White & Dunckelman (1989) found limited differences in D. saccharalis deadheart injury.…”

Section: Discussionmentioning

confidence: 99%

Sugarcane Planting Date Impact on Fall and Spring Sugarcane Borer (Lepidoptera: Crambidae) Infestations

Beuzelin

Mészáros

Akbar

et al. 2011

Florida Entomologist

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A Moth Production Index for Evaluating Sugarcane Cultivars for Resistance to the Sugarcane Borer (Lepidoptera: Pyralidae)

Cited by 45 publications

References 0 publications

Improved Chemical Control for the Mexican Rice Borer (Lepidoptera: Crambidae) in Sugarcane: Larval Exposure, a Novel Scouting Method, and Efficacy of a Single Aerial Insecticide Application

Improved Chemical Control for the Mexican Rice Borer (Lepidoptera: Crambidae) in Sugarcane: Larval Exposure, a Novel Scouting Method, and Efficacy of a Single Aerial Insecticide Application

Effects of Elasmopalpus lignosellus (Lepidoptera: Pyralidae) Damage on Sugarcane Yield

Sugarcane Planting Date Impact on Fall and Spring Sugarcane Borer (Lepidoptera: Crambidae) Infestations

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