Vegetables - Spinach

Spinach

Management

Pests

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