Weeds Enhance Insect Diversity and Abundance and May Improve Soil Conditions in Mango Cultivation of South Florida

This study examined if weeds could serve as insectary plants to increase beneficial insect abundance and diversity in mango cultivation in southern Florida. Additionally, we examined how weed presence affects mango tree soil health. We found that weeds significantly increased pollinating and parasit...

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Main Authors: Blaire Kleiman, Suzanne Koptur
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Insects
Subjects:
Online Access:https://www.mdpi.com/2075-4450/14/1/65
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author Blaire Kleiman
Suzanne Koptur
author_facet Blaire Kleiman
Suzanne Koptur
author_sort Blaire Kleiman
collection DOAJ
description This study examined if weeds could serve as insectary plants to increase beneficial insect abundance and diversity in mango cultivation in southern Florida. Additionally, we examined how weed presence affects mango tree soil health. We found that weeds significantly increased pollinating and parasitoid insect abundance and diversity. Eight insect orders and eighteen families were significantly more abundant on mango trees with weeds growing beneath them than those where weeds were removed. There was no difference in predatory insects between treatments, and slightly more herbivorous insects on weedy mango trees. Pollinating insects visiting mango flowers in the weed treatment were significantly greater, as well as spiders on weedy mango trees. However, there were more lacewings (Neuroptera) observed on the mango trees without weeds, and leaf chlorophyll in the old and new mango leaves was significantly greater, in the weed-free treatment. Soil conditions, however, significantly improved in soil carbon and a greater pH reduction in the presence of weeds, though weeds affected neither soil nitrogen, phosphorous, nor chlorophyll in productive green leaves. These results show that a tolerable level of selective weed species’ presence may benefit insect, plant, and soil biodiversity in farms. This is important in increasing production, sustainability, and biodiversity in agriculture, which otherwise may be deficient in non-crop life.
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spelling doaj.art-58ab7db0188d4dc1a7db5c3e865f4b002023-11-30T22:48:29ZengMDPI AGInsects2075-44502023-01-011416510.3390/insects14010065Weeds Enhance Insect Diversity and Abundance and May Improve Soil Conditions in Mango Cultivation of South FloridaBlaire Kleiman0Suzanne Koptur1Agroecology Program, Department of Earth and Environment, International Center for Tropical Botany, Institute of Environment, Florida International University, 11200 SW 8th St, Miami, FL 33199, USAPlant Ecology Lab, Department of Biology, International Center for Tropical Botany, Institute of Environment, Florida International University, 11200 SW 8th St, Miami, FL 33199, USAThis study examined if weeds could serve as insectary plants to increase beneficial insect abundance and diversity in mango cultivation in southern Florida. Additionally, we examined how weed presence affects mango tree soil health. We found that weeds significantly increased pollinating and parasitoid insect abundance and diversity. Eight insect orders and eighteen families were significantly more abundant on mango trees with weeds growing beneath them than those where weeds were removed. There was no difference in predatory insects between treatments, and slightly more herbivorous insects on weedy mango trees. Pollinating insects visiting mango flowers in the weed treatment were significantly greater, as well as spiders on weedy mango trees. However, there were more lacewings (Neuroptera) observed on the mango trees without weeds, and leaf chlorophyll in the old and new mango leaves was significantly greater, in the weed-free treatment. Soil conditions, however, significantly improved in soil carbon and a greater pH reduction in the presence of weeds, though weeds affected neither soil nitrogen, phosphorous, nor chlorophyll in productive green leaves. These results show that a tolerable level of selective weed species’ presence may benefit insect, plant, and soil biodiversity in farms. This is important in increasing production, sustainability, and biodiversity in agriculture, which otherwise may be deficient in non-crop life.https://www.mdpi.com/2075-4450/14/1/65weedsinsectsmangosoil
spellingShingle Blaire Kleiman
Suzanne Koptur
Weeds Enhance Insect Diversity and Abundance and May Improve Soil Conditions in Mango Cultivation of South Florida
Insects
weeds
insects
mango
soil
title Weeds Enhance Insect Diversity and Abundance and May Improve Soil Conditions in Mango Cultivation of South Florida
title_full Weeds Enhance Insect Diversity and Abundance and May Improve Soil Conditions in Mango Cultivation of South Florida
title_fullStr Weeds Enhance Insect Diversity and Abundance and May Improve Soil Conditions in Mango Cultivation of South Florida
title_full_unstemmed Weeds Enhance Insect Diversity and Abundance and May Improve Soil Conditions in Mango Cultivation of South Florida
title_short Weeds Enhance Insect Diversity and Abundance and May Improve Soil Conditions in Mango Cultivation of South Florida
title_sort weeds enhance insect diversity and abundance and may improve soil conditions in mango cultivation of south florida
topic weeds
insects
mango
soil
url https://www.mdpi.com/2075-4450/14/1/65
work_keys_str_mv AT blairekleiman weedsenhanceinsectdiversityandabundanceandmayimprovesoilconditionsinmangocultivationofsouthflorida
AT suzannekoptur weedsenhanceinsectdiversityandabundanceandmayimprovesoilconditionsinmangocultivationofsouthflorida