Varietal resistance to rice stem-borers in Asia

Chaudhary, R. C.; Khush, G. S.; Heinrichs, E. A.

doi:10.1017/s1742758400004872

Cited by 35 publications

(36 citation statements)

References 13 publications

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“…Cultivars are screened in some parts of the United States for resistance to the rice water weevil, but they are not currently bred for resistance to stem borers (McClung 2003). In Asia, where 20 borer species are pests of rice, cultivars are screened for resistance to stem borers, and resistant cultivars are widely used as a control tactic (Chaudhary et al 1984). In our study, Texas rice cultivars showed varying levels of injury and yield loss from the stem borers D. saccha- For each effect, means within the same column followed by the same letter are not signiÞcantly different (P Ͼ 0.05; TukeyÕs ͓1953͔ HSD).…”

Section: Discussionmentioning

confidence: 64%

“…Similar levels of relative susceptibility among cultivars that were planted across years suggest that mechanisms of resistance may be comparable for both borer species. In the Philippines, greenhouse studies showed similar levels of resistance among rice cultivars to Scirpophaga incertalus Walker; the Asiatic rice borer, Chilo suppressalis Walker; Scirpophaga innota Walker; and Sesamia inferens Walker (Chaudhary et al 1984). However, rice cultivars showed differential levels of resistance to either C. suppressalis or S. incertalus in Taiwan (Fernando 1967).…”

Section: Discussionmentioning

confidence: 99%

“…This information is not readily available for the more resistant hybrid cultivars, which are bred by private seed companies in the United States. In addition to whiteheads, other types of stem borer injury that can reduce yield include partial whiteheads (a portion of the grains on the panicle are consumed by the larva), dead hearts (destruction of the apical part of stalk), or unemerged whiteheads (Chaudhary et al 1984). In Asia, yields losses of 1Ð3% have been reported for every percentage of increase in whiteheads attributed to stem borers (Pathak 1968).…”

Section: Discussionmentioning

confidence: 99%

“…Among anatomical features, stems with several layers of sclerenchymatous tissue have been correlated with resistance to stem borers (Chaudhary et al 1984, Heinrichs 1994. Biochemical and physiological factors can affect resistance, including a stem borer attractant (p-methylacetophenone, Chaudhary et al 1984), which has been shown to enhance oviposition. Also, cultivars with high levels of stem silica can reduce stem borer infestations (Chaudhary et al 1984).…”

Section: Discussionmentioning

confidence: 99%

“…Cultivar resistance in Asia has been a primary management tactic for stem borers on rice for the past 50 yr (Chaudhary et al 1984). In Louisiana, resistance to D. saccharalis and C. plejadellus has been shown to vary among rice cultivars based on the proportion of plants with insect injury (Oliver et al 1972, Oliver et al 1973.…”

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confidence: 99%

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Resistance to Stem Borers (Lepidoptera: Crambidae) Among Texas Rice Cultivars

Way

Reay‐Jones²,

Reagan³

2006

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A 4-yr field study was conducted to assess the resistance of rice, Oryza sativa L., cultivars to injury from the sugarcane borer, Diatraea saccharalis (F.), and the Mexican rice borer, Eoreuma loftini (Dyar) (both Lepidoptera: Crambidae). Several cultivars showed reduced levels of injury ('CLXL8', 'XL8', 'Wells', 'Cheniere', and 'XP710' in 2003; CLXL8, XP723, Cheniere, and 'CL161' in 2004) and lower stem borer yield loss (CLXL8 in 2004) than the more susceptible 'Priscilla'. The resistant CLXL8 also had less injury and yield loss in 2004 and higher yield in 2003 than 'Cocodrie', currently the most popular rice cultivar in Texas and Louisiana. Linear regression analyses between whiteheads and main crop rice yield showed steeper negative slopes for the more resistant cultivars than the more susceptible cultivars, indicating a greater yield loss per whitehead on the resistant cultivars. Compensation from insect injury likely explains the positive associations established in our study between main crop yield and whiteheads for some cultivars. Cultivar resistance is anticipated to become a major control tactic in reducing infestations of E. loftini and D. saccharalis in the Texas and Louisiana rice industries.

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Section: Discussionmentioning

confidence: 64%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Resistance to Stem Borers (Lepidoptera: Crambidae) Among Texas Rice Cultivars

Way

Reay‐Jones²,

Reagan³

2006

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Efficacy of reduced rates of chlorantraniliprole seed treatment on insect pests of irrigated drill‐seeded rice

Villegas

Wilson

Stout

2019

Pest Management Science

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Background For the past decade, insecticidal seed treatment has been the most widely used control tactic against insect pests of rice (Oryza sativa L.) in the USA. Seed treatments are used primarily to control the most economically important early‐season pest of rice, the rice water weevil (Lissorhoptrus oryzophilus Kuschel). This study was conducted to evaluate the efficacy of reduced rates of chlorantraniliprole seed treatment against the rice water weevil, fall armyworm (Spodoptera frugiperda J.E. Smith), and sugarcane borer (Diatraea saccharalis F.) under field and laboratory conditions. Concentrations of chlorantraniliprole in plant tissues were determined at vegetative and reproductive developmental stages of rice plants. Results Chlorantraniliprole seed treatment reduced the densities of rice water weevil larvae relative to non‐treated controls even at rates 75% lower than the label rate. Increased mortality of fall armyworm larvae was observed at reduced seed treatment rates relative to a non‐treated control. Chlorantraniliprole seed treatment increased the mortality of sugarcane borer larvae at all rates relative to controls and the mortality was consistently higher in larvae that were fed stems from treated plants at the vegetative developmental stage than larvae that were fed stems from plants at the reproductive stage. Concentrations of chlorantraniliprole in plant tissues increased with seed treatment rate and decreased with plant age. Conclusion This study has shown that reduced chlorantraniliprole seed treatment rates can provide adequate control against the rice water weevil, fall armyworm, and sugarcane borer, particularly at early developmental stages of rice plants. © 2019 Society of Chemical Industry

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Biocontrol Potential and its Exploitation in Sustainable Agriculture

Upadhyay¹,

Mukerji²,

Chamola³

2001

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Varietal resistance to rice stem-borers in Asia

Cited by 35 publications

References 13 publications

Resistance to Stem Borers (Lepidoptera: Crambidae) Among Texas Rice Cultivars

Resistance to Stem Borers (Lepidoptera: Crambidae) Among Texas Rice Cultivars

Efficacy of reduced rates of chlorantraniliprole seed treatment on insect pests of irrigated drill‐seeded rice

Biocontrol Potential and its Exploitation in Sustainable Agriculture

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