Systemic Insecticide Evaluation

Describes how a systemic insecticides experiment was conducted by Dr. John Palumbo and his technicians at the U of A Yuma Agriculture Center.

Aphid Evaluation at the U of A Yuma Ag Center (AZ)

Technicians explain how they count such high populations of these insects. For more information on aphid identifications check the identification tool published by Dr. John Palumbo at the U of A Yuma Agriculture Center.

Thrips Sampling Method2

Describes a sampling method for this important insect pest in desert lettuce.

What is the Bagrada Bug?

Description of this New Invasive pest.

Bagrada Bug, Bagrada hilaris A New Invasive Pest Part I

Bagrada Bug, Bagrada hilaris A New Invasive Pest Part II

Part II of the conference: "Bagrada Bug What do we really know?", presented by U of A Entomologist John Palumbo at the SW Ag Summit in March, 2010

Bagrada Bug, Bagrada hilaris A New Invasive Pest Part III

Part III of the conference: "Bagrada Bug: What do we really know?", presented by U of A Entomologist John Palumbo at the SW Ag Summit in March, 2010

Adult Whitefly Sampling with Vacuum

Description of a sampling method for whitefly adults used by scientists at the University of Arizona Yuma Agricultural Center.

Bagrada Bug Research Using Row Covers

Procedures used to established a Row Cover Bagrada Bug Experiment.

Can bagrada bugs feed on the seeds and reduce your plant stand?

John Palumbo, U of A, Department of Entomology describes how the Bagrada Bug can cause damage to seeds and affect plant stands.

Luigi, The Jungle Bug

The life of "Luigi" a Bagrada Bug. Documented at the U of A Yuma Agricultural Center in Yuma AZ.

Entomology Vegetable IPM Update for May 16, 2012.

Presented by John Palumbo

How Herbicides Work: Lipid Biosynthesis Inhibitors

Weed Scientist and Area Agriculture Agent Barry Tickes describes the different herbicide modes of action in this video the "Lipid Biosynthesis Inhibitors". He presents the typical symptoms on grasses and explains what ACCases are.

How Herbicides Work: Photosynthesis Inhibitors

Barry continues his lecture on how herbicides work with the topic: "Photosynthesis Inhibitors". He defines Photosynthesis and how certain herbicides interfere with this process.

How Herbicides Work: Cell Membrane Disruptors

Barry describes the symptoms caused by mainly contact herbicides, presents pictures and cites examples.

How Herbicides Work: Seedling Root and Shoot Growth Inhibitors

These are also called Mitotic Inhibitors and Barry Tickes explains how these products stop Mitosis with some illustrations and symptoms in corn.

How Herbicides Work: Part I

Students from the Applied Weed Science PLS 300 class participated in the Field Day: "How Herbicides Work", Barry Tickes explained one Mode of Action (MOA).

How Herbicides Work: Part II

Barry continues explaining 3 additional MOAs.

How Herbicides Work: Part III

Barry continues explaining 4 additional MOAs.

Using Melon Herbicides Effectively

Symptoms of Protein Synthesis Inhibitors in Sweet Potato Plant

Protein Synthesis Inhibitors demonstration.

Shepherd's Purse

Description of this weed by Kaylee Renick in the University of Arizona Weed Science Class.

Purple Nutsedge

Emily J Foley from the University of Arizona Yuma Agricultural Center provides information about this problematic weed.

Southern Brass Button

This presentation is part of the University of Arizona degree program Weed Science class. Ryan McGuire PCA from Parker AZ explains about a new weed in the area called Southern Brass Button.

Pelargonic Acid as a Herbicide

University of Arizona Wed Scientist Barry Tickes describes one of the oldestNon-selective acids used as a herbicide.

London Rocket: Sisymbrium irio

This presentation is part of the University of Arizona degree program Weed Science class. Raul Rojas provides information about this weed.

Yellow Sweetclover: Melilotus officinalis (L.) Lam.

This presentation is part of the University of Arizona degree program Weed Science class. Tawnie Guerrero provides information about this weed.

Weed Science Vegetable IPM Update May 16, 2012

Presented by Barry Tickes

Effective Management of Melon Powdery Mildew in the Desert Part I

University of Arizona Plant Pathologist Mike Matheron's presentation on the 21st. Annual Fall Desert Crops Workshop. Imperial CA.

Effective Management of Melon Powdery Mildew in the Desert Part II

University of Arizona Plant Pathologist Mike Matheron's presentation on the 21st. Annual Fall Desert Crops Workshop.

Phytophthora Blight Evaluation on Peppers

Greenhouse experiment conducted on Anaheim peppers for fungicide efficacy on Phytophthora

Weeds Science : What is the difference between Goosefoot and Lambsquarter?

1. No difference, herbicide tolerance.
2. Color, appearance.
3. One is roasted and the other is baked.
4. Check Barry's answer (video)

Ask Barry: Nutsedge Control

1. Cultivation.
2. Topical application of citric acid.
3. There is no control.
4. Ask Barry: video.

Weed Science: How do Plant Growth Regulators kill weeds?

1. Contact.
2. Systemic Activity.
3. Ask Barry: video.

Insect Management : What level of whitefly pressure can growers and PCAs expect this fall?

1. Light populations.
2. Heavy populations.
3. Ask John: video.

Insect Management: How quick can a Bagrada Bug adult kill broccoli seedlings?

1. 12 hours.
2. 24 hours.
3. Ask John: video.

Insect Management : How do Flea Beetles damage cole crops?

1. Piercing sucking
2. Total Defoliation
3. Ask John: video.

General Veggie IPM Videos.

For questions or comments on any of the videos please contact Marco Pena at the Yuma Agricultural Center.
College of Agriculture, The University of Arizona, Tucson, AZ.