Control of yellow stem borer, Scirpophaga incertulas (Lepidoptera: Pyralidae) by mating disruption on rice in India: effect of unnatural pheromone blends and application time on efficacy

1996 ◽  
Vol 86 (5) ◽  
pp. 515-524 ◽  
Author(s):  
A. Cork ◽  
K. De Souza ◽  
K. Krishnaiah ◽  
D.V.S.S.R. Kumar ◽  
A. Ashok Reddy ◽  
...  
Keyword(s):  
Mating Disruption ◽  
Cumulative Effect ◽  
Stem Borer ◽  
Pheromone Trap ◽  
Rice Grain ◽  
Mediated Communication ◽  
Scirpophaga Incertulas ◽  
Yellow Stem Borer ◽  
Significant Difference ◽  
Zero Order Release

AbstractSingle applications of slow-release pheromone formulations were used to control yellow stem borer, Scirpophaga incertulas Walker, by mating disruption in two trials on rice in India. The first trial compared the efficacy of two formulations containing 1:10:1 and 1:10:0 ratios of (Z)-9-hexadecenal, (Z)-ll-hexadecenal and (Z)-9-octadecenal, components of the S. incertulas pheromone, and a commercially-available formulation, Selibate CS, containing the related Chilo suppressalis Walker pheromone, a 1:10:1 blend of (Z)-9-hexadecenal, (Z)-ll-hexadecenal and (Z)-13-octadecenal, with farmers' practice plots treated with insecticides. Pheromone trap catches indicated that in each of the pheromone-treated plots the catches of male moths were reduced by up to 98% compared with catches in the insecticide-treated plots suggesting that pheromone-mediated communication was disrupted. Larval damage ranged from 5.7 to 8.1% white heads (WH) in the insecticide-treated plots compared to a significantly reduced range of 2.1 to 2.4% WH in the pheromone-treated plots. There was no significant difference between the damage estimates recorded for each of the different pheromone treatments. A second trial compared the effect on efficacy of applying the two-component pheromone formulation on different dates, 9–12 and 39–44 days after transplanting. Both pheromone treatments gave significantly lower levels of WH damage compared to equivalent insecticide treated plots; 1.8, 2.0, and 6% respectively. In both trials rice grain yields increased by between 5 and 12% in pheromone-treated plots compared to insecticide treated plots, which was due, at least in part, to the cumulative effect of reduced stem borer damage in both the tillering and reproductive stages of the crop cycle. The formulations exhibited pseudo-zero order release rates with field lives of between 70 and 90 days.

Season-long control of yellow stem borer, Scirpophaga incertulas (Lepidoptera: Pyralidae) by mating disruption with the natural ratio of pheromone components

1998 ◽  
Vol 88 (2) ◽  
pp. 109-116 ◽  
Author(s):  
A Cork ◽  
K De Souza ◽  
K Krishnaiah ◽  
A Ashok Reddy ◽  
S Zainullabuddin
Keyword(s):  
Mating Disruption ◽  
Stem Borer ◽  
Pheromone Trap ◽  
Mediated Communication ◽  
Scirpophaga Incertulas ◽  
Yellow Stem Borer ◽  
Pheromone Components ◽  
Rice Yields ◽  
Lepidoptera Pyralidae ◽  
Dry Seasons

AbstractControl of yellow stem borer, Scirpophaga incertulas (Walker), in rice was attempted by mating disruption using the natural ratio of pheromone components, a 1:3 blend of (Z)-9- and (Z)-11-hexadecenal, in replicated trials at three locations in Andhra Pradesh, India, during the 1994 and 1995 dry seasons. The pheromone was formulated in SelibateR and applied by hand at a rate of 40 g a.i./ha. In Medchal and Nellore, pheromone-mediated communication was reduced by at least 94% for the first 50 and 64 days after application respectively, as measured by pheromone trap catch suppression. Compared with adjacent farmers' practice plots, subsequent dead heart and white head damage were reduced by 74 and 63% and 83 and 40% in Medchal and Nellore, respectively. In Medchal, average rice yields were increased compared to the farmers' practice plots, 4108 and 3835 kg/ha respectively, but in Nellore, they were the same as those obtained in the farmers' practice plots, 6400 and 6733 kg/ha respectively. In Warangal, the level of communication disruption over the first 70 nights after pheromone application was less than obtained in either Medchal or Nellore and averaged between 50 and 87%. The maximum dead heart and white head damage recorded in the pheromone-treated plots in Warangal were 2.8 and 15.7% respectively compared to 7.0 and 20.9% respectively in the farmers' practice plots. Differences in S. incertulas larval damage estimates obtained from the pheromone-treated and farmers' practice plots in Warangal were reflected in grain yields, 4036 and 3715 kg'ha respectively. Surveys of insecticide use indicated that 92% of smallholders in Medchal applied insecticide at least once per season while in Warangal over 60% applied insecticide on two or more occasions. The data show that season-long control of S. incertulas comparable to that obtained with conventional insecticides can be achieved by mating disruption in smallholder rice fields in India.

To study the seasonal incidence of rice stem borer Scirpophaga incertulas through pheromone trap

2019 ◽  
Vol 4 (02) ◽  
pp. 195-198
Author(s):  
Rajendra Singh ◽  
Amit Rana ◽  
S. K. Sachan ◽  
D. V. Singh ◽  
Vivek . ◽  
...  
Keyword(s):  
Block Design ◽  
Uttar Pradesh ◽  
Stem Borer ◽  
Pheromone Trap ◽  
Scirpophaga Incertulas ◽  
Seasonal Incidence ◽  
Yellow Stem Borer ◽  
Randomized Block Design ◽  
Major Pest ◽  
First Time

The present investigation was carried out to study the “Eco friendly management of yellow stem borer, Scirpophaga incertulas (Walker) on paddy in western plain zone of Uttar Pradesh” in randomized block design with three replications and seven treatments at Crop Research Center, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut. The yellow stem borer, S. incertulas (Walker) was recorded as major pest. The incidence of S. incertulas (Walker) was recorded on the incidence of yellow stem borer Scirpophaga incertulas (Walker) showed that it was recorded on 26th standard week for the first time and continued till second week of November i.e. 46th standard week. The infestation of stem borer recorded as dead heart/ white ear head ranged from 0.85 to 15.25 per cent during the crop season i.e. Kharif 2017 and positive correlated with all the other weather parameters.

Bacillus thuringiensisisolates from the Philippines: habitat distribution, δ-endotoxin diversity, and toxicity to rice stem borers (Lepidoptera: Pyralidae)

1998 ◽  
Vol 88 (3) ◽  
pp. 335-342 ◽  
Author(s):  
W. Theunis ◽  
R.M. Aguda ◽  
W.T. Cruz ◽  
C. Decock ◽  
M. Peferoen ◽  
...  
Keyword(s):  
Rice Field ◽  
Polyclonal Antibodies ◽  
Stem Borer ◽  
The Philippines ◽  
Positive Sample ◽  
Rice Grain ◽  
Scirpophaga Incertulas ◽  
Yellow Stem Borer ◽  
Pcr Products ◽  
Grain Dust

AbstractBacillus thuringiensisBerliner isolates were detected in 57% of 801 samples of rice grain dust, soil, rice field arthropods, and miscellaneous habitats (rice straw compost and mammal faeces) collected at 100 sites in the Philippines. The collection yielded 3950 isolates ofB. thuringiensis(8.7 isolates/positive sample). Grain dust from rice mills was the richest source (63% of the samples were positive, with 10.2 isolates/positive sample), followed by rice field arthropods, soil, and miscellaneous habitats. Polyclonal antibodies to six δ-endotoxin groups (Cry1A, Cry1B, Cry1C, Cry1D, Cry1E, and Cry3A) were used in enzyme-linked immunosorbent assays (ELISA) to characterize the toxins produced by each isolate. Subsamples of isolates representing the diversity of isolate sources and δ-endotoxin profiles were bioassayed against the yellow stem borer,Scirpophaga incertulas(Walker) and striped stem borer,Chilo suppressalis(Walker). Eighteen isolates highly toxic to both species were selected for characterization of δ-endotoxin genes by polymerase chain reaction (PCR) with primers specific to 14 genes or gene subfamilies, and Western blotting with Cry2A antibodies. At least two novel δ-endotoxin genes, related tocry1Bandcry1F, were detected by DNA sequencing of PCR products.

Control of the yellow stem borer, Scirpophaga incertulas by mating disruption with a PVC resin formulation of the sex pheromone of Chilo suppressalis (Lepidoptera: Pyralidae) in India

1996 ◽  
Vol 86 (1) ◽  
pp. 1-9 ◽  
Author(s):  
A. Cork ◽  
S.K. Basu
Keyword(s):  
Sex Pheromone ◽  
Untreated Control ◽  
Mating Disruption ◽  
Stem Borer ◽  
Control Plot ◽  
Chilo Suppressalis ◽  
Scirpophaga Incertulas ◽  
Yellow Stem Borer ◽  
Resin Formulation ◽  
Treated Plot

AbstractA commercially-available, hand-applied PVC resin formulation of the sex pheromone of the striped rice stem borer, Chilo suppressalis (Walker) was used to control the yellow stem borer, Scirpophaga incertulas (Walker), in a 20 ha mating disruption trial in West Bengal, India, in 1992. Indirect measures of mating disruption were used to compare the pheromone-treated plot with an untreated control plot and a farmers' practice plot where a conventional pesticide control regime was practised. The results showed that the level of ‘white head’ damage in the pheromone-treated plot was significantly lower than that recorded in other treatment plots and that the relative percentage of the larvae of the two major stem borer species, S. incertulas and Chilo polychrysa (Meyrick) found in the region changed from 88% S. incertulas in the farmers' practice plot to 65% in the pheromone-treated plot. The yields of grain and straw recorded in the pheromone-treated plot were significantly higher than in the untreated control plot but not significantly different from those recorded in the farmers' practice plot.

Natural parasitism of eggs of yellow stem borer, Scirpophaga incertulas Walker (Lepidoptera: Crambidae) in rice ecosystem at Tiruchirappalli, Tamil Nadu

ENTOMON ◽  
2020 ◽  
Vol 45 (3) ◽  
pp. 181-188
Author(s):  
T. Sharmitha ◽  
C. Gailce Leo Justin ◽  
S. Sheeba Joyce Roseleen ◽  
P. Yasodha
Keyword(s):  
Field Study ◽  
Tamil Nadu ◽  
Host Density ◽  
Stem Borer ◽  
Scirpophaga Incertulas ◽  
Egg Masses ◽  
Yellow Stem Borer ◽  
Rice Ecosystem ◽  
Natural Parasitism

Three species of parasitoids viz., Telenomus dignus Gahan, Trichogramma japonicum, Ishii and Tetrastichus schoenobii Ferriere were recorded from the egg masses of rice yellow stem borer, Scirpophaga incertulas (Walker) in a field study. The extent of parasitism was high during Rabi (43.33 – 93.33 %) and low during Kharif (0 - 40.00 %). Parasitism by T. dignus was maximum in October (50.00 %), T. japonicum, in November (23.08 %) and T. schoenobii in February (55.55 %). dignus and T. schoenobii in combination parasitized maximum number of egg masses (41.82 %). Multiple parasitism by the three species was high in December (8.33 %) and January (7.14%). Parasitic potential was maximum, when T. schoenobii alone parasitised the egg masses followed by T. dignus and T. schoenobii in combination. Host density in the field influenced the extent of parasitism.

scholarly journals Evaluation of different rice genotype against yellow stem borer (Scirpophaga incertulas Walker)

2020 ◽  
Vol 8 (2) ◽  
pp. 1510-1514
Author(s):  
Munna Yadav ◽  
Rajendra Prasad ◽  
Rabindra Prasad ◽  
Aroondhaty Choudhary ◽  
Dhyanananda Kumari
Keyword(s):  
Stem Borer ◽  
Scirpophaga Incertulas ◽  
Yellow Stem Borer ◽  
Rice Genotype

scholarly journals Effect of elevated carbon dioxide on biology and morphometric parameters of yellow stem borer, Scirpophaga incertulas infesting rice (Oryza sativa)

2022 ◽  
Vol 24 (1) ◽  
Author(s):  
GOURI SHANKAR GIRI ◽  
S. V. S. RAJU ◽  
S. D. MOHAPATRA ◽  
MUNMUN MOHAPATRA
Keyword(s):  
Carbon Dioxide ◽  
Larval Instar ◽  
Co2 Concentration ◽  
Elevated Carbon Dioxide ◽  
Stem Borer ◽  
Developmental Period ◽  
Morphometric Parameters ◽  
Scirpophaga Incertulas ◽  
Yellow Stem Borer ◽  
Co2 Concentrations

An experiment was conducted at Research Farm, National Rice Research Institute, Cuttack, Odisha, India to quantify the effect of elevated carbon dioxide (CO2) concentrations on the biology and morphometric parameters of yellow stem borer (Scirpophaga incertulas, Pyralidae, Lepidoptera). Yellow stem borer is one of the major pest of rice in the whole rice growing regions of South East Asia. The effect of three carbon dioxide concentrations i.e. 410 ppm (ambient), 550 ppm and 700 ppm on the duration of the developmental period as well as morphometric parameters of each stage of the lifecycle of the pest was analysed. It was found that, there was an increase in the duration of the developmental period of each stage of life cycle as the concentration of CO2 increases. However, the life span of the adult moth was significantly lower under the elevated CO2 concentrations when compared with ambient CO2 concentration. Morphometric parameters viz., mean length, width and weight of each larval instar, pupa and adult were found to be significantly higher in elevated concentrations of CO2 as compared to ambient concentration.

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