Dose Responses of Field Populations of Alfalfa Weevil from Various Western States to Lambda-Cyhalothrin® Using a Feeding and Contacting Assay
Cotton Insecticide Use Guide, Knowing and Balancing Risks
The recent conjectures about the Asian giant hornets (AKA murder hornets) have been a topic of several news stories. Extension team and I have received several calls and inquiries for identification of wasps confused with the Asian giant hornet. While there have been no confirmed sightings of the Asian giant hornet in Arizona, we do however have cicada killer wasps, which are also very large, at first glance can be confused with the Asian giant hornet, and can be found in large number due to the recent emerging of cicadas. Gene Hall, Peter Ellsworth and Naomi Pier have developed a new Short publication to set the record on differentiating between the two wasps.
The goal od this publication by Shaku Nair, Dawn Gouge, Ayman Mostafa ,Shujuan Li, Kai Umeda, and Hongmei Li-Byarlay is to provide readers with basic information about wild honey bees in Arizona. The document includes information on identification, biology and behavior of wild honey bees, the risks they pose outdoors, and how to safely deal with bees encountered in the environment.
Brown Stink Bug FAQ (PDF, 2.28MB) This publication answers some frequently asked questions about Brown Stink Bugs in Arizona.
Sampling Soil for Root Knot Nematode (PDF, 1.27MB) June 2013
This publication contains steps to help ensure you get a good sample when sampling for Root Knot Nematodes in your soil.
Insect Pests of Desert-Grown Alfalfa: Alfalfa Aphid Complex (PDF, 2.53MB) March 2013
This publication provides diagnostic information to help PCAs and growers distinguish between four damaging aphids found in Arizona alfalfa. Spotted alfalfa aphid and blue alfalfa aphid are most damaging in our system.
Under the Radar, Deep in the Canopy: Brown Stink Bugs in Arizona Cotton (PDF, 1.9MB) August 2012
Brown Stink Bugs (BSB), rarely economic pests of Arizona cotton, are widely reported this year and can be quite damaging. Arizona research confirms that sweep net sampling is ineffective for assessing BSB levels! This IPM Short provides very effective sampling procedures. Management guidelines for AZ are unavailable, but stink bug efficacy information from the Southeastern U.S. is included for consideration.
Soft-Bodied Collops Likes Soft Bodies! (PDF, 461KB) July 2011
Beetles in the genus Collops are valuable predators in cotton. These natural enemies can be preserved in the system by using selective insecticides for whitefly and Lygus control.
Drapetis: A Natural Enemy (PDF, 2.8MB) June 2011
Learn how to identify Drapetis, or “dance flies”. These are important and abundant predators in cotton and other crops
Insect Pests of Desert-Grown Alfalfa: Egyptian Alfalfa Weevil (PDF, 2.2MB) December 2011
A guide to identification, sampling and thresholds for Egyptian alfalfa weevil.
Pale-Striped Flea Beetles in Young Cotton Stands (PDF, 2.2MB) April 2012
A guide to protecting young and emerging cotton from flea beetle damage and the factors to consider in determining control options.
Big-eyed Bugs Have Big Appetite for Pests (PDF, 1.3MB) August 2011
Two species of big-eyed bugs (genus Geocoris) prey on many pest species in cotton and other Arizona crops, providing “free” pest control that can be promoted through the use of selective chemistries
Being Selective! (PDF, 454KB) July 2012
Information on using selective control to protect both the environment and the user.
To Stop or Not to Stop, That is the Question: A Guide to Terminating Lygus Controls (PDF, 1.4MB) July 2012
Thresholds for Lygus bugs in cotton have been well-established for years and validated on commercial acreages in Arizona. This IPM guides provides key factors in decision making about terminating Lygus Controls, concerning production scenarios and individual situations.
$1+ Cotton? New Thresholds? (PDF, 1.9MB) June 2011
While cotton value has increased recently, an economic analysis shows that current recommended thresholds for Lygus and whitefly management in cotton are still the best approach to maximizing profit.
Keeping Cotton Green! (PDF, 608KB) July 2011
This guide describes “selectivity” and the role that selective insecticides can play in conserving natural enemies while still controlling our two key pests of cotton, whiteflies and Lygus bugs.
Untangling the Web…Spiders in Arizona Fields (PDF, 2.3MB) July 2011
Spiders can play an important role in Arizona crop fields, contributing to the biological control of pest insects.
Anatomy of a Cotton Sweep (PDF, 1.0MB) June 2012
A guide to the proper use of a sweep net for sampling key pests in cotton.
In 7 Minutes or Less! (PDF, 2.18MB) July 2012
An illustrated guide to the rapid and efficient sampling of sweetpotato whiteflies (Bemisia tabaci) in cotton.
Assassin Bugs Top the Food Web (PDF, 1.6MB) August 2011
Assassin bugs are “apex” or top predators in the cotton food web contributing to biological control of pests, including Lygus and whiteflies. Two common genera are Zelus and Sinea.
Fuera del Radar, Escondidas en el Follaje Chinches Apestosas Cafés en Algodón de Arizona (PDF, 2.0MB) August 2012
A Spanish language version of “Under the Radar, Deep in the Canopy Brown Stink Bugs in Arizona Cotton”
Collops de Cuerpo Blando (PDF, 115KB) July 2012
A Spanish language translation of “Soft-Bodied Collops Likes Soft Bodies”
Drapetis: Un Enemigo Natural (PDF, 3.0MB) June 2012
A Spanish language translation of “Drapetis: A Natural Enemy”.
Chinche ojona, Tiene un Gran Apetito por las Plagas (PDF, 840KB) June 2012
A Spanish language translation of “jee-AH-kor-is, Big-eyed Bugs Have Big Appetite for Pests”
¡Seamos Selectivos! (PDF, 597KB) July 2012
A Spanish language version of “Being Selective!”
¿Aplicar o No Aplicar?, He Ahí el Dilema Guía para finalizar el control de Lygus (PDF, 1.7MB) July 2012
A Spanish language translation of “To Stop or Not to Stop, That is the Question A Guide to Terminating Lygus Controls”
¡Manteniendo Verde al Algodón! (PDF, 791KB) July 2012
A Spanish language translation of “Keeping Cotton Green!”
Desenredando la Telaraña… ¡Arañas en los Campos de Arizona! (PDF, 2.5MB) June 2012
A Spanish language translation of “Untangling the Web…Spiders in Arizona Fields!”.
Anatomía de las Redadas para Muestreo en Algodón (PDF, 1.2MB) June 2012
A Spanish language guide to the proper use of a sweep net for sampling key pests in cotton
¡En 7 Minutos o Menos! (PDF, 2.4MB) July 2012
Una guía ilustrada a la rápida toma de muestras de camote mosca blanca.
Chinche Asesina en lo Alto de la Cadena Alimenticia! (PDF, 844KB) June 2012
A Spanish language translation of “Assassin Bugs Top the Food Web”.