Vegetable: Recent submissions
Now showing items 1-20 of 87
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Colorado River Summary & UpdateThis article, published in the VegIPM Newsletter (Vol. 17, No. 3), provides an update on the status of the Colorado River, including declining flows, reservoir conditions, and ongoing water management negotiations affecting the Southwest.
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Soil Health: Regenerative and Conventional Crop Production SystemsThis article, published in the VegIPM Newsletter (Vol. 17, No. 2), examines regenerative and conventional crop production systems, highlighting how soil health outcomes depend on management practices, climate, and cropping context, with particular emphasis on desert agricultural systems.
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Soil Health: Decomposition of Organic Materials and Nutrient MineralizationThis article, published in the VegIPM Newsletter (Vol. 17, No. 1), explains how organic material decomposition and nutrient mineralization influence soil health and nutrient availability in desert crop systems.
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Biological Insecticide Options for Bagrada Bug ManagementThis article in the VegIPM Newsletter (Vol. 16, No. 25) summarizes biological insecticide performance for managing Bagrada bug in organic broccoli. M-Pede and the M-Pede + Entrust tank mix provided the strongest suppression (≈60%), while Captiva Prime and Neemix reduced populations by nearly 50%. Products like Aza-Direct, Entrust, and Botanigard delivered more moderate reductions (≈30%), with none offering rapid knockdown. Results highlight the limited but promising tools available for organic growers seeking selective options for Bagrada bug control.
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Soil Health: Organic and Inorganic Industrial Fertilizers Impact of Crop and Soil HealthThis article, published in the VegIPM Newsletter (Vol. 16, No. 25), compares organic and inorganic fertilizers and their effects on soil health. Silvertooth explains how each contributes differently to soil structure, biology, and nutrient delivery, emphasizing the value of integrating both in desert crop systems.
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Which Biological Insecticides Work Best Against Lepidopteran Pests in Brassicas and Lettuces?This article in the VegIPM Newsletter (Vol. 16, No. 24) summarizes organic insecticide performance against major lepidopteran pests in Brassicas and lettuce. Across three seasons of trials, XenTari and Entrust provided the most consistent suppression, while other biological products showed more variable results.
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Soil Health: Sources Utilized in Plant Nitrogen UptakeThis article in the VegIPM Newsletter (Vol. 16, No. 24) explains that crops mainly rely on inorganic nitrogen and that organic forms play only a minor role in plant uptake.
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Soil Health: Nitrogen Cycle and Management in Agricultural SoilsThis article, published in the Vegetable IPM Newsletter (Vol. 16, No. 23), explains the nitrogen cycle and the biological processes that transform nitrogen into plant-available forms. It highlights the importance of the mineralization–immobilization transformation (MIT) cycle in maintaining soil fertility, supporting crop productivity, and managing nitrogen efficiently in agricultural systems.
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How to Identify Eggs and Early Instar Larvae of Beet Armyworm, Diamondback Moth, and Cabbage LooperThis article, published in the Vegetable IPM Newsletter (Vol. 16, No. 23), provides diagnostic features to distinguish eggs and early instar larvae of beet armyworm, diamondback moth, and cabbage looper. It highlights key differences in color, shape, clustering, and larval behavior to improve field identification and management of these common vegetable pests.
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Root System DevelopmentThis article, published in the Vegetable IPM Newsletter (Vol. 16, No. 22), highlights how healthy root systems support water and nutrient uptake, soil health, and overall plant vigor. It explains root structure, function, and maintenance for optimal crop growth.
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The Evolution of Bagrada Bug Management in Desert Cole Crops: The Legacy of John C. Palumbo (2010–2025)This article, published in the Veg IPM Newsletter (Vol. 16, No. 21), summarizes John Palumbo’s research following the 2009 introduction of Bagrada bug in desert cole crops. His work identified pest behavior, feeding injury, and management thresholds that shaped current IPM practices still guiding growers today.
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Germination and Seedling DevelopmentThis article, published in the Vegetable IPM Newsletter (Vol. 16, No. 21), explains how temperature, moisture, and soil conditions affect seed germination and seedling development, with focus on lettuce thermodormancy and managing heat with sprinkler irrigation.
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Developments in Plant GeneticsThis article, published in the VegIPM Newsletter (Vol. 16, No. 20), traces advances in plant genetics from the Green Revolution to Bt crops, while warning against past missteps like Lysenkoism.
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Sodic Soil Hazard from Irrigation WaterThis article, in the VegIPM Newsletter (Vol. 16, No. 19), explains how recent rainfall increased sodic soil hazards in the lower Colorado River Valley, highlighting temporary soil crusting issues and the return to stable conditions with Colorado River irrigation
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Salinity and Sodicity – Fundamental PointsThis article, in the VegIPM Newsletter (Vol. 16, No. 18), outlines key definitions, symptoms, and management strategies for saline and sodic soils in desert agriculture, emphasizing leaching, amendments, and drainage.
