Seasonal Abundance of Spotted Pod Borer, Maruca vitrata Fabricius in Early Pigeonpea [Cajanus cajan (L.) Millsp.] and its Management through Farmscaping in Uttar Pradesh

Author(s):  
G. K. Sujayanand ◽  
Anup Chandra ◽  
Sonika Pandey ◽  
Shripad Bhatt

Field experiments were carried out in pigeonpea during Kharif 2014 to Kharif 2017 for Maruca vitrata Fabricius management through farmscaping approach with 7 different border crops (5 leguminous crops; 2 non-leguminous crops) and a sole crop. The M. vitrata larval webbing per plant was lowest and per cent decrease in webbing/plant over sole crop was highest in sorghum (2.05 and 60.95) as border crop followed by pearl millet (3.29 and 37.39). The highest mean number of Coccinella septumpunctata per plant (0.77), Cheilomenes sexmaculata per plant (0.85/plant) and spiders (0.76/plant) was recorded from sorghum as border crop with pigeonpea. The highest percent increase in above said natural enemies over sole crop was also recorded from sorghum as border crop treatment (755.6, 844.4 and 660). The highest pigeonpea yield (730.72 kg/ha) and per cent yield gain (65.81%) was also recorded with sorghum treatment. Among 5 weather parameters tested, day length (1.53) and relative humidity (-0.12) were found to influence the M. vitrata population significantly and its incidence was recorded from 41st SMW to 47th SMW.

Author(s):  
T.D. Jayabal ◽  
J.S. Kennedy

Background: Legume pod borer, Maruca vitrata (Fabricius), infests the Dolichos bean throughout the cropping season. However, there is no information on the seasonal abundance of M. vitrata over different seasons on Dolichos bean, which is an essential tool for forecasting and developing integrated pest management strategies. Methods: The seasonal abundance of M. vitrata on Dolichos bean were studied during three consecutive cropping seasons of 2019 Summer, Kharif and Rabi. The larval population in flowers and pods and the number of larval webbings and weather parameters were recorded and subjected to correlation and multiple linear regression analysis. Result: The overall larval abundance was observed to be higher in flowers than in pods. The highest larval abundance in flowers and pods was 14.60 and 13.40 during the 48th and 50th standard meteorological week (SMW) of Rabi 2019 respectively, which corresponds to 8 to 10 weeks after sowing (WAS) in flowers and 10 to 12 WAS in the case of pods. The number of larval webbings was higher, with 18.76 during the 49th SMW of Rabi 2019. The maximum temperature had a significant negative correlation with the larval abundance in flowers (r= -0.570), pods (r= -0.523) and the number of active webbings (r= -0.477). At the same time, the regression coefficient shows that rainfall had a significant negative influence on the larval abundance in pods (B= -1.26).


2020 ◽  
Vol 8 (2) ◽  
pp. 199-204
Author(s):  
RN Ahmed ◽  
MM Uddin ◽  
MA Haque ◽  
KS Ahmed

Bean pod borer, Maruca vitrata is a serious pest of bean which causes serious yield loss of bean and other leguminous crops. To evaluate the field efficacy of two microbial pathogens for the management of legume pod borer, Maruca vitrata F an experiment was carried out in the field laboratory of the Department of Entomology, Bangladesh Agricultural University (BAU), Mymensingh during kharif season in 2016 on yard long bean plants. Entomopathogens viz. Bacillus thuringiensis and Beauveria bassiana were used @ 0.50, 1.00 & 1.50 g/L and 0.25, 0.50 & 0.75 g/L, respectively to conduct the experiment. These two entomopathogens showed significant effect on the management of bean pod borer in comparison to untreated control in the field in decreasing the flower  (22.02, 29.72, 33.35%  and 16.16, 24.26, 30.05% by Bt & Bb, respectively) and pod infestation  (16.45, 25.69, 31.93%  and 10.73, 21.57, 28.04% by Bt & Bb, respectively). These two pathogens showed a significant effect on the yield with increasing pod yield 10.65, 20.32, 26.25% and 7.69, 14.58, 21.79% by Bt & Bb, respectively of yard long bean. Besides, these both the two entomopathogens were almost similar to the effect of a widely used chemical insecticide Nitro 505 EC in managing pod borer in the field. Int. J. Appl. Sci. Biotechnol. Vol 8(2): 199-204


Author(s):  
Hari Prakash Namdev Ram Subhag Singh ◽  
Bharat Lal Kushwaha

A field experiment on influence of intercropping on the larval population of chickpea pod borer, Helicoverpa armigera (Hub.) in chickpea was conducted at Agricultural Research Farm of Brahmanand Post Graduate College, Rath, Hamirpur, Uttar Pradesh during 2016-17 and 2019-20. In Bundelkhand agro-climatic region the activity of chickpea pod borer was observed from last week of December to last week of March while, its peak activity was noticed at 9th, 10th and 11th SMW in chickpea agro-ecosystem. The infestation of chickpea pod borer (H. armigera) larvae was started from last week of December when the crop was in vegetative growth stage. Thereafter, its population increase gradually to reach maximum (1.72 larvae/mrl) at 10th standard (first fortnight of March) after that its population declined gradually till the harvesting of the crop. The chickpea intercropped with safflower, mustard, linseed, barley and marigold had significant influence in reducing the larval population of chickpea pod borer (H. armigera). The chickpea intercropped with marigold (0.71larva/mrl) and mustard (0.75larva/mrl) was found the most effective in reducing the larval population of H. armigera. It was followed by chickpea + linseed, chickpea + barley and chickpea + safflower intercropping systems. The maximum population of chickpea pod borer was observed in chickpea sole crop (1.07larvae/mrl).


Author(s):  

Abstract A new distribution map is provided for Maruca vitrata (Fabricius) Lepidoptera: Pyralidae (bean pod borer, mung moth, legume pod borer). Attacks Vigna unguiculata, groundnuts, Phaseolus and other legumes. Information is given on the geographical distribution in Africa, Angola, Benin, Bioko, Burundi, Cameroon, Cape Verde, Chad, Ethiopia, Gabon, Ghana, Ivory Coast, Kenya, Madagascar, Malawi, Mali, Mauritius, Mozambique, Niger, Nigeria, Réunion, Rwands, Senegal, Sierra Leone, Somalia, South Africa, Sudan, Tanzania, Uganda, Zaire, Zambia, Zimbabwe, Asia, Andaman Islands, Bangladesh, Bhutan, Brunei, Burma, Cambodia, China, Beijing, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangxu, Jiangxi, Nei Mongol, Shaanxi, Shanxi, Sichuan, Yunnan, Xizang (Tibet), Zheijiang, Hong Kong, India, Andhra Pradesh, Assam, Bihar, Delhi, Gujarat, Haryana, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Orissa, Meghalaya, Punjab, Tamil Nadu, Uttar Pradesh, West Bengal, Indonesia, Borneo, Java, Lombok, Moluccas, Sulawesi, Sumatra, Japan, Korea, Malaysia, Sabah, Sarawak, West Malaysia, Maldive Islands, Nanshei-shoto, Nepal, Nicobar Islands, Philippines, Sikkim, Singapore, Sri Lanka, Taiwan, Thailand, Vietnam, Australasia and Pacific Islands, Australia, New South Wales, Queensland, Cook Islands, Fiji, Hawaii, Irian Jaya, Louisiade Archip., Mariana Islands, Marquesas, New Caledonia, New Ireland, New Hanover, Norfolk Island, Papua New Guinea, American Samoa, Western Samoa, Society Islands, Tonga, Trobriand Islands, Tubuai Islands, Umboi Islands, Vanuatu, Central America and Caribbean, Antilles, Belize, Costa Rica, Dominican Republic, El Salvador, Guatemala, Haiti, Honduras, Jamaica, Mexico, Panama, Puerto Rico, Trinidad, South America, Argentina, Bolivia, Brazil, Amazonas, Minas Gerais, Pará, Rio de Janeiro, Rio Grande do Sul, Sao Paulo, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Surinam, Uraguay, Venezuela.


2021 ◽  
Vol 95 ◽  
Author(s):  
R. Pervez ◽  
U. Rao

Abstract The legume pod-borer, Maruca vitrata Fabricius (Lepidoptera: Crambidae) (LPB), is an important insect pest of pigeon pea. Chemical pesticides are generally employed to manage this pest, but because of the soil residue issues and other environmental hazards associated with their use, biopesticides are also in demand. Another benign alternative is to use entomopathogenic nematodes (EPNs) to manage this vital pest. In the present study, the infectivity of ten native EPNs was evaluated against LPB by assessing their penetration and production in the LPB. The effectiveness of the promising EPNs against second-, third- and fourth-instar LPB larvae was also studied. Heterorhabditis sp. (Indian Agricultural Research Institute-Entomopathogenic Nematodes Rashid Pervez (IARI-EPN RP) 06) and Oscheius sp. (IARI-EPN RP 08) were found to be most pathogenic to LPB, resulting in about 100% mortality within 72 h, followed by Steinernema sp. (IARI-EPN RP 03 and 09). Oscheius sp. (IARI-EPN RP 04) was found to be the least pathogenic to LPB larva with 67% mortality. Maximum penetration was exhibited by Heterorhabditis sp. (IARI-EPN RP 06) followed by Oscheius sp. (IARI-EPN RP 08), whereas the lowest rate of penetration was exhibited by Oscheius sp. (IARI-EPN RP 01). The highest rate of production was observed with Oscheius sp. (IARI-EPN RP 08), followed by Oscheius sp. (IARI-EPN RP 04 and 10). Among the tested instars of the LPB larvae, second-instar larvae were more susceptible to EPNs, followed by third- and fourth-instar larvae. The results indicate that Heterorhabditis sp. (IARI-EPN RP 06) and Oscheius sp. (IARI-EPN RP 08) have a good potential to the manage LPB.


2021 ◽  
Vol 40 (3) ◽  
pp. 583-594
Author(s):  
Anil Kumar ◽  
Ranjana Jaiwal ◽  
Rohini Sreevathsa ◽  
Darshna Chaudhary ◽  
Pawan K. Jaiwal

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