Natural Enemy (&lt;i&gt;Arthropoda-Insecta&lt;/i&gt;) Biodiversity in Vegetable Crops in Northeastern Tamil Nadu, India

Anbalagan, Veeramuthu; Paulraj, Michael Gabriel; Ignacimuthu, Savarimuthu; Baskar, Kathirvelu; Gunasekaran, Jonas

doi:10.18052/www.scipress.com/ilns.53.28

Cited by 4 publications

(5 citation statements)

References 6 publications

(6 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our results, the intercropped/border cropped fields recorded evenness indicating uniform distribution of species compared to the sole cropped ecosystems. The results were in line with the observations made of Anbalagan et al (2016) who reported maximum diversity, richness, and evenness of natural enemy complex in the vegetables intercropped with castor, roselle (Hibiscus sabdariffa L.), cowpea, and agathi (Sesbania grandiflora L.) compared to those in the sole cropped. Margalef's richness index is a measure of species richness with a positive correlation towards diversity in an ecosystem.…”

Section: Resultssupporting

confidence: 91%

Effect of intercrops and border crops on the diversity of parasitoids and predators in agroecosystem

Amala

Shivalingaswamy

2018

Egypt J Biol Pest Control

View full text Add to dashboard Cite

Diversity of parasitoids and predators in the sole cropped and intercropped, border cropped, and hedgerow cropped fields of guava (sole cropped and intercropped with cowpea), mulberry (sole cropped and border cropped with castor), and sapota (sole cropped and intercropped with clusterbean) were documented in two villages Naukalpalya and P Rampura of Kanakapura district in Karnataka, India, during 2016-2017. The parasitoids and predators were collected using yellow pan traps and sweep nets. The variations in the diversity, species richness, and evenness between two cropping systems are discussed in this paper. Diversity indices were worked out. Predators belonging to the families viz., Coccinellidae, Carabidae, Chrysopidae, Syrphidae, and Pentatomidae were recorded. The adult parasitoids belonging to the families Trichogrammatidae, Braconidae, Encyrtidae, and Ichneumonidae were recorded. Shannon-Weiner index, Margalef's richness index, and evenness index found to be higher in the inter/border/hedgerow cropped fields compared to the sole cropped ecosystems. The abundance of the adult stage of the predators and parasitoids of the inter/border/hedgerow crops was found to be higher. The results of the study confirmed the role of crop diversification as a tool to enhance the functional biodiversity of parasitoids and predators for an efficient biological control program.

show abstract

Section: Resultssupporting

confidence: 91%

Effect of intercrops and border crops on the diversity of parasitoids and predators in agroecosystem

Amala

Shivalingaswamy

2018

Egypt J Biol Pest Control

View full text Add to dashboard Cite

show abstract

“…Simpson and Shannon Weiner index of the present study showed that the natural enemy population was copious in intercropped plot than in the non -IPM plot. The results are in accordance with Anbalagan et al (2016) in which it has been described about the natural enemy biodiversity in vegetable crop, the Shannon Weiner index was reported above 3.5 in all vegetable fields throughout the study period. Meanwhile, Species richness index was lower in intercrop when compared to the monocrop.…”

Section: Indicessupporting

confidence: 91%

Diversity and population dynamics of predatory fauna in the brinjal ecosystem under IPM and non-IPM situations

Chandrasekaran²,

Indhumathi³

et al. 2022

JBC

View full text Add to dashboard Cite

The study was conducted to assess and document the diversity, abundance of insect predators and its relationship with weather parameters in brinjal ecosystem at Horticultural farm, Horticultural College and Research Institute, Thiruchirapalli. The study has shown that the Lynx spider, Peucetia viridana was the dominant species with relative abundance of 19.04% and 20.39%, respectively in IPM and non-IPM plots. Among the coccinellid predators, Brumoides sutularis was recorded as the predominant species with relative abundance of 13.82% and 20.42% in respective IPM and non - IPM plots. Simpson and Shannon Weiner index of the present study showed that the natural enemies’ population was abundant in intercropped (IPM) plot than in the non - IPM plot. Spider population fluctuated throughout the cropping period and exhibited positive correlation with maximum temperature (r = 0.097 to 0.465), morning relative humidity and negative correlation with rainfall (r = - 0.078 to - 0.395) exhibiting that the population buildup was good at high temperature. Similarly, correlation coefficient obtained for coccinellids also exhibited that the maximum temperature (r = 0.057 to 0.443), minimum temperature and morning relative humidity had positive effect on the population. Whilst, wind velocity and rainfall (r = - 0.020 to - 0.990) implicated negative effect on the population of coccinellid predators. The neuropteran and heteropteran predators showed negative correlation with maximum temperature, evening relative humidity and positive correlation with minimum temperature, morning relative humidity and rainfall.

show abstract

“…Among three treatments, Treatment I was found to have highest diversity indices than other treatments. Intercropping vegetables with castor, cowpea, agathi and rosell was found to have increased diversity, richness and evenness of predators compared to sole crop (43). Attributes which make biological control agents eminent for ecological pest management are its environmental safety, cost effective, non-hazardous to human health whereas chemical insecticides cause environmental pollution, resistance in target pest and are hazardous to human health.…”

Section: Discussionmentioning

confidence: 99%

Optimizing control of flea beetles through ecological engineering of vegetable agroecosystem in Kashmir

Maqsood

Buhroo²,

Sherwani³

et al. 2022

Plant Sci. Today

View full text Add to dashboard Cite

Ecological engineering is a concept of habitat manipulation to reduce dependence on insecticides. It is the intentional involvement of plant communities and insectary plants in managed landscapes influencing natural enemies survival. These natural enemies lead to reduction in pest population in environmentally acceptable production practices. Field experiments were conducted during 2019 and 2020 to evaluate impact of ecological engineering on the flea beetles, P. striolata and A. himensis and their natural enemies on brinjal crop. Three treatments with different plant species were worked out for pest management study. Results showed that Treatment I caused maximum increase in mean number of natural enemies (1.11/ 10 plants) which in turn brought maximum mean pest reduction. Treatment II caused second maximum increase in mean number of natural enemies (0.92/ 10 plants). Treatment III caused minimum increase in mean number of natural enemies (0.68/ 10 plants). The diversity of predators was documented in different treatments. Simpson’s diversity index, Shannon-Weiner index and Evenness index were found higher in Treatment I followed by Treatment II and Treatment III. The maximum mean % increase of natural enemies in main crop over control (250.52 %) with maximum mean % reduction of target pest (63.46 %) was observed in Treatment I. The mean % increase of natural enemies in main crop over control (167.44 %) with mean % reduction of target pest (54.41 %) was observed in Treatment II. The mean % increase of natural enemies in main crop over control (20.97%) with mean % reduction of target pest (48.88%) was observed in Treatment III.

show abstract

Natural Enemy (<i>Arthropoda-Insecta</i>) Biodiversity in Vegetable Crops in Northeastern Tamil Nadu, India

Cited by 4 publications

References 6 publications

Effect of intercrops and border crops on the diversity of parasitoids and predators in agroecosystem

Effect of intercrops and border crops on the diversity of parasitoids and predators in agroecosystem

Diversity and population dynamics of predatory fauna in the brinjal ecosystem under IPM and non-IPM situations

Optimizing control of flea beetles through ecological engineering of vegetable agroecosystem in Kashmir

Contact Info

Product

Resources

About