Ecological Engineering of Intercropping in Blackgram Promotes Services of Coccinellids and Suppress Aphis gossypii (Glover)

Lokesh, S.; Muthukrishnan, N.; Ganapathy, N.; Bapu, J.R. Kannan; Somasundaram, E.

doi:10.20546/ijcmas.2017.611.233

Cited by 4 publications

(4 citation statements)

References 7 publications

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“…They had reported a higher activity of C. septempunctata and C. sexmaculata from groundnut + maize (8.11/10plants) followed by groundnut + pearl millet (7.39/10 plants) and groundnut + sorghum (7.11/10 plants). Lokesh et al (2017) observed the highest per cent increase in coccinellids population from black gram + cowpea (161.97) among the 6 different border crops tested. In the present study, pigeonpea + sorghum (755.6) recorded the ).…”

Section: Activity Of Coccinellidsmentioning

confidence: 90%

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

Sujayanand

Chandra

Pandey

et al. 2020

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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.

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Section: Activity Of Coccinellidsmentioning

confidence: 90%

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

Sujayanand

Chandra

Pandey

et al. 2020

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“…Similar experiments were carried out in fields with sown annual flower strips (consisting of 11 plant species) to promote natural enemies of aphids and recorded an increase in the number of eggs deposited by hoverflies and lacewings by 127 per cent and 48 per cent and a reduction in number of aphids by 75 per cent in adjacent potato crops (Tschumi et al, 2016). Black gram + Cowpea border cropping system significantly influenced the maximum coccinellids on the black gram (3.72/plant), and the minimum Aphis gossypii population (3.63/terminal shoot) (Lokesh et al, 2017). Marigold plants (Tagetes erecta) as border crop in rice attracted a significant population of natural enemies complex (5.17) which resulted in a significant drop in pest complex abundance (3.00) (Iamba et al, 2021).…”

Section: Treatmentsmentioning

confidence: 99%

Role of habitat manipulation for pest management in tomato

K. M. Ajaykumara,

Rajkhowa,

N. Y. Chanu

et al. 2023

JBC

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The experimental field trials were undertaken during the Rabi season of 2021 and 2022 to assess the influence of habitat manipulation on the incidence of fruit borers of tomatoes and their natural enemies at Pasighat, Arunachal Pradesh. The pooled data of two years depicted that tomatoes intercropped with cowpea and bordered with marigold plants recorded the lowest fruit borer incidence (1.23 larvae per plant), the highest natural enemy population of 5.58 per plant, lowest fruit borer damage per cent (15.21%) and yield of about 15.99 tonnes per ha. It was followed by a crop combination of tomato + chickpea bordered with mustard with a fruit borer incidence of 1.59 larvae per plant, the natural enemy population of 5.32 per plant, 15.90 per cent incidence of fruit borers and 15.42 tonnes yield per ha. This study indicates the possibility of using these crop combinations as an integral part of bio-intensive pest management against fruit borers in tomatoes.

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“…The defender to pest ratio per cropping system was calculated for each plot by dividing the total number of defenders per cropping system by the total number of pests per cropping system. Total number of pests and natural enemies observed by sweep net and in situ counts will be used for estimating P: D ratio 11 Total no. of defenders P:D ratio = Total no.…”

Section: Pest: Defender Ratio (P: D Ratio)mentioning

confidence: 99%

Crop diversification for sustainable management of two spotted mite (Tetranychus urticae koch) of jasmine (Jasminum sambac L.)

Kamala¹

2019

HIJ

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A field trial was conducted to study the influence of crop diversification through intercropping on the incidence of two spotted mite, Tetranychus urticae of jasmine (Jasminum sambac). The results revealed the significant reduction in incidence of the pest in intercropped treatments over monocrop of jasmine. Marigold recorded significantly lowest mean incidence of two spotted mites (12.33 no's / 2cm 2 of leaf area), followed by gingelly (12.53 no's /2cm 2 ) and cowpea (13.99 no's/2cm 2 ), with jasmine as sole crop recorded highest two spotted mite incidence (17.73 no's/2cm 2 ). The highest per cent reduction of two spotted mites over control was noticed in jasmine intercropped with marigold (30.45 per cent) followed by jasmine intercropped with onion (29.32 per cent). Among the intercrops tried, higher incidence of two spotted mite was recorded in jasmine intercropped with fennel (15.26 no's./2 cm 2 ) and fenugreek (15.13 no's /2cm 2 ). Jasmine intercropped with marigold recorded 30.67 percent reduced two spotted mite incidence than sole jasmine crop. The population of natural enemies viz., the coccinellid, Stethorus rani, chrysopid, Chrysoperla zastrowi sillemi, and predatory bugs Geocoris pallens, Orius sp. were more recorded in marigold intercropped jasmine with a mean population of 8.70, 3.60, 4.40 and 5.30 no's/ five plants respectively. Moreover, the predatory thrips, Scolothrips sexmaculatus was more encountered in jasmine intercropped with marigold (4.30 no's/ cm 2 /five plants) than sole jasmine crop. The predatory mites, Neoseiulus longispinosus (2.60 no's/five plants) and Euseius sp (3.60 no's/cm 2 /five plants) were more noticed in jasmine plants intercropped with marigold. The pest defender ratio was highest in jasmine + marigold (1:3.50) and the order falls as jasmine+coriander (1:3.05) and jasmine+gingelly (1:2.34). The chemical profile of marigold flower and leaf extracts were analysed in GC-MS, which contributed 43 and 33 compounds respectively. Allyl iso thiocyanate, linalool, caryophyllene, beta myrcene, tumerone, D-limanone and trans beta ocimene were the compounds of interest present, of which, linalool, beta farnesene, alpha farnesene, allyl isothiocyanate and caryophyllene were present in marigold leaves also. The study indicated the supremacy of marigold in reducing the incidence of the two spotted mite as well as attracting more natural enemy population, bagging the credit of eco-feast crop.

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Ecological Engineering of Intercropping in Blackgram Promotes Services of Coccinellids and Suppress Aphis gossypii (Glover)

Cited by 4 publications

References 7 publications

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

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

Role of habitat manipulation for pest management in tomato

Crop diversification for sustainable management of two spotted mite (Tetranychus urticae koch) of jasmine (Jasminum sambac L.)

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