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  1. Agricultural IPM
  2. Vegetables
  3. Spinach
Spinach
Spinach
Management
Crop Management
Soil Management
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Irrigation
Pests
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Insects
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Spinach Publications
  • Mar 2019
    Foxglove Aphids on Desert Produce 2019
    Publication (PDF, 371KB)
    Authors: John C. Palumbo
    This article describes the Lettuce Aphid. It covers it's physical description, economic damage, insecticidal control, and methods for identifying this insect.
  • Oct 2018
    Corn Earworm Management on Desert Produce - October 2018
    Publication (PDF, 273KB)
    Authors: John C. Palumbo
    This article describes the Corn Earworm and where it can be found. It covers it's physical description, economic damage, insecticidal control, and methods for identifying this insect.
  • Sep 2018
    Vegetable Planting Calendar for Maricopa County
    Publication (PDF, 634KB)
    Authors: Kai Umeda
    In the low desert regions of the southwest, including Maricopa County, most any type of vegetables and fruits can be grown successfully when appropriate varieties are selected and planted at the right time. The climate, the season, and potential pests all impact the selection of what to plant when.
  • Feb 2018
    Foxglove Aphids on Desert Produce 2018
    Publication (PDF, 360KB)
    Authors: John C. Palumbo
    This article describes the Lettuce Aphid. It covers it's physical description, economic damage, insecticidal control, and methods for identifying this insect.
  • Jan 2017
    Foxglove Aphids on Desert Produce 2017
    Publication (PDF, 536KB)
    Authors: John C. Palumbo
    This article describes the Lettuce Aphid. It covers it's physical description, economic damage, insecticidal control, and methods for identifying this insect.
  • Feb 2016
    Insect Management on Desert Produce Crops: Western Flower Thrips 2016
    Publication (PDF, 357KB)
    Authors: John C. Palumbo
    Western flower thrips are major pests to lettuces, cabbage, and spinach because of the damage they cause to these plants. This article describes their development, Economic Damage, and suggestions for their management.
  • Feb 2015
    Insect Management on Desert Produce: Corn earworm / Tobacco budworm
    Publication (PDF, 271KB)
    Authors: John C. Palumbo
    A serious pests to heads of lettuce, the Corn Earworm can cause serious damage. This article describes their development, Economic Damage, and suggestions for their management.
  • Feb 2015
    Insect Management on Desert Produce: Corn earworm / Tobacco budworm 2015
    Publication (PDF, 271KB)
    Authors: John C. Palumbo
    This article describes the Corn Earworm and where it can be found. It covers it's physical description, economic damage, insecticidal control, and methods for identifying this insect.
  • Feb 2015
    Foxglove Aphids on Desert Produce 2015
    Publication (PDF, 1.07MB)
    Authors: John C. Palumbo
    This article describes the Lettuce Aphid. It covers it's physical description, economic damage, insecticidal control, and methods for identifying this insect.
  • Dec 2014
    Genetic Diversity and Fungicide Sensitivity of Phymatotrichopsis omnivora
    Publication (PDF, 383KB)
    Authors: Chitrampalam, P. and Olsen, Mary W.
    Cotton root rot, caused by Phymatotrichopsis omnivora, is the most destructive disease of dicotyledonous plants in Arizona. There are no known reliable control methods for this disease, and the difficulty in its management is most often directed at its survival deep in soils and its wide host range. Genetic diversity in P. omnivora and its potential role in disease are unknown. Isolating the fungus and reproducing the disease in the greenhouse or laboratory are problematic, making it difficult to assess the efficacy of potential treatments.
  • Aug 2014
    Methods of Measuring for Irrigation Scheduling - When
    Publication (PDF, 1.3MB)
    Authors: Martin, Edward C.
    Proper irrigation management requires that growers assess their irrigation needs by taking measurements of various physical parameters. Some use sophisticated equipment while others use tried and true common sense approaches. Whichever method used, each has merits and limitations. In developing any irrigation management strategy, two questions are common: “When do I irrigate?” and “How much do I apply?” This bulletin deals with the WHEN.
  • Feb 2014
    Insect Management on Desert Produce Crops: Western Flower Thrips 2015
    Publication (PDF, 161KB)
    Authors: John C. Palumbo
    Western flower thrips are major pests to lettuces, cabbage, and spinach because of the damage they cause to these plants. This article describes their development, Economic Damage, and suggestions for their management.
  • Feb 2014
    Diagnosing Nutrient Deficiencies Quick-Reference
    Publication (PDF, 429KB)
    Authors: Shawna Loper
    Nutrient deficiencies can be identified in field through visual observations. However, additional analysis, either plant or soil testing is often necessary to confirm nutrient stress. The following is a quick-reference flow chart that can be used in field to identify potential nutrient deficiencies. Each nutrient has unique deficiency symptoms. Deficiencies will appear in many ways. It can be confused with other plant problems like pathogens or spray damage. But nutrient deficiencies can often be recognized because they tend to form symmetrical patterns, where both sides of leaf or plant parts show the same pattern.
  • Jul 2013
    Measuring Water Applications
    Publication (PDF, 144KB)
    Authors: Ayman Mostafa
    One of the challenges in using surface irrigation systems is determining the effective amount of water applied to a field. To get a good estimate, you must first calculate the gross amount of water applied and then, taking into system efficiencies, determine the amount of effective water applied (what the plants actually receive).
  • Feb 2012
    Insect Management on Desert Produce Crops: Western Flower Thrips 2012
    Publication (PDF,161KB)
    Authors: John C. Palumbo
    Western flower thrips are major pests to lettuces, cabbage, and spinach because of the damage they cause to these plants. This article describes their development, Economic Damage, and suggestions for their management.
  • Jan 2012
    Insect Management on Desert Produce Crops: Aphids 2012
    Publication (PDF, 582KB)
    Authors: John C. Palumbo
    Aphids are major pests to desert produce due to the damage they cause. This article describes their development, Economic Damage, and suggestions for their management. The Green Peach Aphid, Potato Aphid, Foxglove Aphid, Lettuce Aphid, Cabbage Aphid, and Turnip Aphid are discussed.
  • Dec 2011
    Measuring Water Flow in Surface Irrigation Ditches and Gated Pipe
    Publication (PDF, 1.28MB)
    Authors: Edward C. Martin
    Measuring water in surface irrigation systems is critical for peak efficiency management. Irrigation management decisions should be made based on the amount of water applied and how this relates to the consumptive use demands of the plants and the soil water holding capacity.
  • Dec 2011
    Determining the Amount of Irrigation Water Applied to a Field
    Publication (PDF, 535KB)
    Authors: Edward C. Martin
    Critical to any irrigation management approach is an accurate estimate of the amount of water applied to a field. Estimating the amount of water applied to a field or to a set is fairly easy for surface systems.

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Spinach Presentations
  • Aug 2019
    Blister Beetles – A Challenge for Arizona’s Growers
    Presentation (PDF, 781KB)
    Authors: W. Eugene Hall, Peter C. Ellsworth, Leif Abrell, Naomi Pier, Duarte Diaz
    Location Presented: University of Arizona Cooperative Extension Conference, Tucson, AZ August 2019

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ARIZONA PEST MANAGEMENT CENTER
University of Arizona
College of Agriculture and Life Sciences
Maricopa Agricultural Center

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Maricopa, AZ 85239
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