Crop Diversification for Sustainable Insect Pest Management in Eggplant (Solanales: Solanaceae)

Sujayanand, G. K.; Sharma, Rajesh; Shankarganesh, K.; Saha, Supradip; Tomar, Rukam S.

doi:10.1653/024.098.0149

Cited by 33 publications

(29 citation statements)

References 61 publications

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“…The different outcome between this previous study and ours may in part be due to dissimilarities in the experimental apparatus (‘X’ and ‘Y’ shaped olfactometers, respectively), the insect population and its physiological state (reared in the laboratory and field‐collected, respectively), as well as plant genotypes used and cultivation conditions. Although repellency of marigold plants was not identified in our olfactometer studies, intercropping eggplant ( Solanum melongena L.) with coriander or marigold was previously reported to lead to lower numbers of B. tabaci on eggplant, compared to eggplant alone (Sujayanand et al., ).…”

Section: Discussionmentioning

confidence: 77%

Aromatic plants affect the selection of host tomato plants by Bemisia tabaci biotype B

Carvalho

Bortolotto

Ventura

2017

Entomologia Exp Applicata

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The effects of intercropping aromatic plants (AP) on behavior and population development of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) were investigated in the field (adults) and in the greenhouse (nymphs). The responses of adults to the volatiles of tomato, Solanum lycopersicum L. (Solanaceae), plants plus AP [T + coriander (Co), rue (R), marigold (M), Greek basil (B), or citronella (Ci)] vs. humidified air or tomato volatiles only were assessed in laboratory Y-tube olfactometer assays. We found higher responses of adult B. tabaci to the humidified air than to the T + Co, T + B, and T + Ci treatments. The responses to T + R and T + M were similar to those to the humidified air. Responses to tomato volatiles were also greater than to T + Co, T + B, and T + Ci. In field assays, populations of adult insects were evaluated in tomato alone, in tomato intercropped with coriander or Greek basil, and in tomato mulched with citronella grass for 6 weeks. Adult whiteflies were generally found in greater numbers in the tomato-alone treatment compared to tomato intercropped with coriander or basil and tomato with citronella grass mulch. Reduction in adult whitefly populations compared to the population found in tomato alone was 84, 79, and 69% in intercrops of T + Co and T + B, and the tomato with citronella mulch treatment, respectively. Infestations of B. tabaci nymphs in plots of tomato plants cultivated alone or intercropped with reseeded coriander plants were also determined in a greenhouse. Nymph counts in the greenhouse assay were generally lower in tomato intercropped with coriander than in tomato alone for all six assessments. The mean reduction in nymphs in tomato intercropped with coriander was 37.7% compared with tomato alone. These results indicate that intercropping aromatic plants reduces infestations of B. tabaci.

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Section: Discussionmentioning

confidence: 77%

Aromatic plants affect the selection of host tomato plants by Bemisia tabaci biotype B

Carvalho

Bortolotto

Ventura

2017

Entomologia Exp Applicata

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“…A positive relationship was found when the dispersal of pests was longer than that of their predators and negative when there was an opposite pattern [36]. A significantly lower infestation for the fruit borer, Leucinodes orbonalis Guenée, was found for eggplant crops when maize crops were grown in the border [37]. In addition, the results showed that the infestation decreased as the distance to the nearest date palm plantation increased.…”

Section: Discussionmentioning

confidence: 88%

Ommatissus lybicus Infestation in Relation to Spatial Characteristics of Date Palm Plantations in Oman

et al. 2019

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The agricultural ecosystem and its interaction with the outside environment plays a major role in the population of herbivores. The infestation of the Dubas bug, Ommatissus lybicus, has shown a spatial and temporal variation among different date palm plantations in Oman. This study focused on the relationship of infestation with date palm cultivation environments. The infestation and some selected environmental factors were evaluated in 20 locations for four consecutive infestation seasons over two years. Ordinary least squares (OLS) regression was used to identify the significant factors and the global relationship. Geographically weighted regression (GWR) was used to determine the spatial relationship. The results showed that GWR had better prediction than OLS. The model explained 61% of the infestation variation in the studied locations. The most significant coefficient was the tree planting pattern, the trees planted in uneven rows and columns (irregular pattern) had a positive effect; the infestation increased as the irregularity increased due to an increase in tree density. This reduced the interaction of harsh outside weather with the date palm plantation microclimate. The proportion of side growing area had a negative effect on insect population; as the percentage of side growing area increased as the infestation decreased, assuming the side growing crops hosted natural enemies. The study concluded that the variation of spatial and temporal infestation was primarily due to the variation of the cultural practices and spatial environment of the date palm plantations.

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“…Up to 30% crop pest reduction due to "natural enemy effect" have been observed by Baliddawa, 1985 in intercropped systems. In addition to natural enemy effects, the groundnut component crop as non-host plants could have further constituted a physical barrier to stem borer pests in pearl millet that possibly inhibited their inter or intra row migration in intercropped systems (Chabiolaye et al, 2005;Manjula and Prasanna Lakshmi, 2014;Sujayanand et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Positive Influence of Intercrops on Natural Enemies in Groundnut Eco-System

2018

International Journal of Research Studies in Zoology

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Groundnut (Arachis hypogaea L.) is a leading oilseed crop in India. It is called as "the king of oilseeds". The seeds are rich source of edible oil (43-55%) and protein (25-28%), also a valuable source of vitamins viz., E, K and B (Kandakoor et al., 2014). Groundnut is native of Brazil which was introduced into India in the sixteenth century. The most important groundnut growing countries are India, China, Nigeria, Sudan and USA. It is grown over an area of 18.9 million hectares with a total production of 17.8 million tonnes in the World. However it is grown in an area of 5.5 Million hectares with a production of 9.7 Million tonnes in India, contributing about 55 per cent of the total oil seed production of the Country which ranks first in the world in terms of total area and 2 nd in production. It"s cultivation is mostly confined to the Southern Indian states, viz., Gujarat, Andhra Pradesh, Karnataka, Tamil Nadu and Maharashtra accounting more than 80 per cent of the total production and acreage. The mean yield of groundnut is about 1784 kg. of pods/ha. in Tamil Nadu, which is higher than the world average (1336 kg./ha.) and it ranks first in India. Tamil Nadu accounts for about 12 per cent (0.41 Million hectares) of the total area under groundnut, it contributes to 22 per cent (0.81 Million Tons) of the total production (Anonymous, 2015). In India, about 115 insect pest species have been recorded to cause damage to groundnut at various stages including in storage. The pest incidence occurs from vegetative stage till harvest of the crop resulting in heavy crop loss and in extreme cases complete crop failure is also a common feature. Under these situations the intercropping can play a significant role to enhance the productivity and profitability per unit area and time through more efficient use of land, water and solar energy besides assuring insurance against crop failure. In IPM, cropping system approach, particularly, use of different varieties and various intercrops are vital tools that alter population status of pests and natural enemies. Local varieties are reported to harbour lower number of pest fauna and higher number of beneficials and vice versa in case of hybrids and other high yielding varieties. Though humpty number of natural enemies are available in Abstract: Field experiment was carried out during 2014 to 2015 at Dryland Agricultural Research Station, Chettinad, Sivagangai district to find out cost-effective groundnut based intercropping system to enhance the activities of natural enemies viz., coccinellids and green lacewings. Groundnut (Arachis hypogaea Linnaeus; Variety: VRI II) when intercropped with maize (Zea mays L.; Variety; Co 6) and bajra (Pennisetum glaucum L.; Variety: Co 7) 4:1 ratio attracted the highest population of natural enemies like coccinellids and green lacewings, recording the population of 8.11 and 3.13 nos./10 plants and 5.94 and 2.27 nos./10 plants followed by groundnut + sorghum

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Crop Diversification for Sustainable Insect Pest Management in Eggplant (Solanales: Solanaceae)

Cited by 33 publications

References 61 publications

Aromatic plants affect the selection of host tomato plants by Bemisia tabaci biotype B

Aromatic plants affect the selection of host tomato plants by Bemisia tabaci biotype B

Ommatissus lybicus Infestation in Relation to Spatial Characteristics of Date Palm Plantations in Oman

Positive Influence of Intercrops on Natural Enemies in Groundnut Eco-System

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