Extension Foundation Online Campus
This course covers the lifecycle and habits of citricola scale, Coccus pseudomagnoliarum and the Metaphycus parasites that lay their eggs in it, damage that citricola scale causes to citrus, sampling methods, and biological and chemical control of citricola scale.
Pest management professionals and growers
California Department of Pesticide Regulation (1.0 hour Other), Certified Crop Advisor (0.5 IPM), and the Arizona Department of Agriculture (1.0 credit).
To get the Continuing Education Units certificate you will be charged a fee of $20. To encourage taking the course earlier in the year, we offer 50% off the regular price from January through October 31st – use the code ipm50 at checkout. You must download the certificate (PDF file) to receive your CEU credits.
Enrollment period
This course must be completed by December 30 of the current year. Download the certificate immediately when you complete the course. You will not be able to retrieve your certificate after December 30.
For assistance with login, course enrollment, or payment, contact campushelp@extension.org. For assistance with progress through the course or certificate, contact creynolds@ucanr.edu.

- Technical support: Petr Kosina
- Technical support: Cheryl Reynolds
- Course author: Elizabeth Grafton-Cardwell
This course is for those who need continuing education units (CEUs) and a certificate. Make the purchase and after the payment you will be redirected to the course. Upon course completion you will be able to download the course certificate.
Courses must be completed and certificate downloaded before December 30 of the current year.
To access the free version of this course without a certificate, click on the title below:
Citricola Scale
Courses must be completed and certificate downloaded before December 30 of the current year.
To access the free version of this course without a certificate, click on the title below:
Citricola Scale
- Teacher: Petr Kosina
- Teacher: Cheryl Reynolds
Course overview
Who should enroll?
Continuing Education Units
California Department of Pesticide Regulation (1.0 hour Other), Certified Crop Advisor (0.5 IPM), and the Arizona Department of Agriculture (1.0 credit).
Enrollment period
Need help?
For assistance with login, course enrollment, or payment, contact campushelp@extension.org. For assistance with progress through the course or certificate, contact creynolds@ucanr.edu.
This course covers the management of the California red scale, Aonidiella aurantii, its life cycle and habits, chemical and biological control, including natural enemies such as the wasp parasites Aphytis melinus and Comperiella bifasciata. This course is available for free for those who do not need Continuing Education Units. The author of the course is Dr. Elizabeth Grafton-Cardwell.
Pest management professionals and growers
California Department of Pesticide Regulation (1.0 hour Other), Certified Crop Advisor (0.5 IPM), and the Arizona Department of Agriculture (1.0 credit).
To get the Continuing Education Units certificate you will be charged a fee of $20. To encourage taking the course earlier in the year, we offer 50% off the regular price from January through October 31st – use the code ipm50 at checkout. You must download the certificate (PDF file) to receive your CEU credits.
This course must be completed by December 30 of the current year. Download the certificate immediately when you complete the course. You will not be able to retrieve your certificate after December 30.
For assistance with login, course enrollment, or payment, contact campushelp@extension.org. For assistance with progress through the course or certificate, contact creynolds@ucanr.edu.

- Technical support: Petr Kosina
- Technical support: Cheryl Reynolds
- Course author: Elizabeth Grafton-Cardwell
This course is for those who need continuing education units (CEUs) and a certificate. Make the purchase and after the payment you will be redirected to the course. Upon course completion you will be able to download the course certificate.
Course must be completed and certificate downloaded before December 30 of the current year.
To access the free version of this course without a certificate, click on the title below:
- Teacher: Petr Kosina
- Teacher: Cheryl Reynolds
Course overview
This course covers the lifecycle and habits of the citrus peelminer, Marmara gulosa, damage it causes to citrus and other crops, sampling methods, and biological and chemical control of citrus peelminer.
This course covers the lifecycle and habits of the citrus peelminer, Marmara gulosa, damage it causes to citrus and other crops, sampling methods, and biological and chemical control of citrus peelminer.
Who should enroll?
Pest management professionals and growers
Pest management professionals and growers
Continuing Education Units
California Department of Pesticide Regulation (1.0 hour Other), Certified Crop Advisor (0.5 IPM), and the Arizona Department of Agriculture (1.0 credit).
California Department of Pesticide Regulation (1.0 hour Other), Certified Crop Advisor (0.5 IPM), and the Arizona Department of Agriculture (1.0 credit).
To get the Continuing Education Units certificate you will be charged a fee of $20. To encourage taking the course earlier in the year, we offer 50% off the regular price from January through October 31st – use the code ipm50 at checkout. You must download the certificate (PDF file) to receive your CEU credits.
Enrollment period
This course must be completed by December 30 of the current year. Download the certificate immediately when you complete the course. You will not be able to retrieve your certificate after December 30.
This course must be completed by December 30 of the current year. Download the certificate immediately when you complete the course. You will not be able to retrieve your certificate after December 30.
Need help?
For assistance with login, course enrollment, or payment, contact campushelp@extension.org. For assistance with progress through the course or certificate, contact creynolds@ucanr.edu.
For assistance with login, course enrollment, or payment, contact campushelp@extension.org. For assistance with progress through the course or certificate, contact creynolds@ucanr.edu.

- Technical support: Petr Kosina
- Technical support: Cheryl Reynolds
- Course author: Elizabeth Grafton-Cardwell
This course is for those who need continuing education units (CEUs) and a certificate. Make the purchase and after the payment you will be redirected to the course. Upon course completion you will be able to download the course certificate.
Course must be completed and certificate downloaded before December 30 of the current year.
To access the free version of this course without a certificate, click on the title below:
Citrus Peelminer
Course must be completed and certificate downloaded before December 30 of the current year.
To access the free version of this course without a certificate, click on the title below:
Citrus Peelminer
- Teacher: Petr Kosina
- Teacher: Cheryl Reynolds
This course covers the lifecycle and habits of citrus red mite, Panonychus citri and the predatory mite, Euseius tularensis, that feeds on it, a virus that can cause the citrus red mite to die as well as other citrus red mite management strategies.
Pest management professionals and growers
California Department of Pesticide Regulation (1.0 hour Other), Certified Crop Advisor (0.5 IPM), and the Arizona Department of Agriculture (1.0 credit).
To get the Continuing Education Units certificate you will be charged a fee of $20. To encourage taking the course earlier in the year, we offer 50% off the regular price from January through October 31st – use the code ipm50 at checkout. You must download the certificate (PDF file) to receive your CEU credits.
This course must be completed by December 30 of the current year. Download the certificate immediately when you complete the course. You will not be able to retrieve your certificate after December 30.
For assistance with login, course enrollment, or payment, contact campushelp@extension.org. For assistance with progress through the course or certificate, contact creynolds@ucanr.edu.

- Technical support: Petr Kosina
- Technical support: Cheryl Reynolds
- Course author: Elizabeth Grafton-Cardwell
This course is for those who need continuing education units (CEUs) and a certificate. Make the purchase and after the payment you will be redirected to the course. Upon course completion you will be able to download the course certificate.
Course must be completed and certificate downloaded before December 30 of the current year.
To access the free version of this course without a certificate, click on the title below:
Citrus Red Mite
Course must be completed and certificate downloaded before December 30 of the current year.
To access the free version of this course without a certificate, click on the title below:
Citrus Red Mite
- Teacher: Petr Kosina
- Teacher: Cheryl Reynolds
Course overview
This course covers the identification, biology, and management of Citrus Thrips, Scirtothrips citri. Topics also include damage to citrus, population dynamics and monitoring. This course is available for free for those who do not need Continuing Education Units.
This course covers the identification, biology, and management of Citrus Thrips, Scirtothrips citri. Topics also include damage to citrus, population dynamics and monitoring. This course is available for free for those who do not need Continuing Education Units.
Who should enroll?
Pest management professionals and growers
Pest management professionals and growers
Continuing Education Units
California Department of Pesticide Regulation (1.0 hour Other), Certified Crop Advisor (0.5 IPM), and the Arizona Department of Agriculture (1.0 credit).
To get the Continuing Education Units certificate you will be charged a fee of $20. To encourage taking the course earlier in the year, we offer 50% off the regular price from January through October 31st – use the code ipm50 at checkout. You must download the certificate (PDF file) to receive your CEU credits.
California Department of Pesticide Regulation (1.0 hour Other), Certified Crop Advisor (0.5 IPM), and the Arizona Department of Agriculture (1.0 credit).
To get the Continuing Education Units certificate you will be charged a fee of $20. To encourage taking the course earlier in the year, we offer 50% off the regular price from January through October 31st – use the code ipm50 at checkout. You must download the certificate (PDF file) to receive your CEU credits.
Enrollment period
This course must be completed by December 30 of the current year. Download the certificate immediately when you complete the course. You will not be able to retrieve your certificate after December 30.
This course must be completed by December 30 of the current year. Download the certificate immediately when you complete the course. You will not be able to retrieve your certificate after December 30.
Need help?
For assistance with login, course enrollment, or payment, contact campushelp@extension.org. For assistance with progress through the course or certificate, contact creynolds@ucanr.edu.
For assistance with login, course enrollment, or payment, contact campushelp@extension.org. For assistance with progress through the course or certificate, contact creynolds@ucanr.edu.

- Technical support: Petr Kosina
- Technical support: Cheryl Reynolds
- Course author: Elizabeth Grafton-Cardwell
- Instructional design: Stephanie Parreira
This course is for those who need continuing education units (CEUs) and a certificate. Make the purchase and after the payment you will be redirected to the course. Upon course completion you will be able to download the course certificate.
Course must be completed and certificate downloaded before December 30 of the current year.
To access the free version of this course without a certificate, click on the title below:
Citrus Thrips
Course must be completed and certificate downloaded before December 30 of the current year.
To access the free version of this course without a certificate, click on the title below:
Citrus Thrips
- Teacher: Petr Kosina
- Teacher: Cheryl Reynolds
Course overview
This course covers the lifecycle and habits of the cottony cushion scale, Icerya purchasi, and the predatory vedalia beetle, Rodolia cardinalis. The coursework will improve your pest and natural enemy recognition, teach sampling methods and thresholds for treatment, and provide a management strategy.
This course is available for free for those who do not need Continuing Education Units.
This course covers the lifecycle and habits of the cottony cushion scale, Icerya purchasi, and the predatory vedalia beetle, Rodolia cardinalis. The coursework will improve your pest and natural enemy recognition, teach sampling methods and thresholds for treatment, and provide a management strategy.
This course is available for free for those who do not need Continuing Education Units.
Who should enroll?
Pest management professionals and growers
Pest management professionals and growers
Continuing Education Units
California Department of Pesticide Regulation (1.0 hour Other), Certified Crop Advisor (0.5 IPM), and the Arizona Department of Agriculture (1.0 credit).
To get the Continuing Education Units certificate you will be charged a fee of $20. To encourage taking the course earlier in the year, we offer 50% off the regular price from January through October 31st – use the code ipm50 at checkout. You must download the certificate (PDF file) to receive your CEU credits.
California Department of Pesticide Regulation (1.0 hour Other), Certified Crop Advisor (0.5 IPM), and the Arizona Department of Agriculture (1.0 credit).
To get the Continuing Education Units certificate you will be charged a fee of $20. To encourage taking the course earlier in the year, we offer 50% off the regular price from January through October 31st – use the code ipm50 at checkout. You must download the certificate (PDF file) to receive your CEU credits.
Enrollment period
This course must be completed by December 30 of the current year. Download the certificate immediately when you complete the course. You will not be able to retrieve your certificate after December 30.
This course must be completed by December 30 of the current year. Download the certificate immediately when you complete the course. You will not be able to retrieve your certificate after December 30.
Need help?
For assistance with login, course enrollment, or payment, contact campushelp@extension.org. For assistance with progress through the course or certificate, contact creynolds@ucanr.edu.
For assistance with login, course enrollment, or payment, contact campushelp@extension.org. For assistance with progress through the course or certificate, contact creynolds@ucanr.edu.

- Technical support: Petr Kosina
- Technical support: Cheryl Reynolds
- Course author: Elizabeth Grafton-Cardwell
This course is for those who need continuing education units (CEUs) and a certificate. Make the purchase and after the payment you will be redirected to the course. Upon course completion you will be able to download the course certificate.
Course must be completed and certificate downloaded before December 30 of the current year.
To access the free version of this course without a certificate, click on the title below:
Cottony Cushion Scale
Course must be completed and certificate downloaded before December 30 of the current year.
To access the free version of this course without a certificate, click on the title below:
Cottony Cushion Scale
- Teacher: Petr Kosina
- Teacher: Cheryl Reynolds
Course overview
This course covers the lifecycle and habits of the forktailed bush katydid, Scudderia furcata, katydid-caused damage, other katydid species, and provides a management strategy. This course is available for free for those who do not need Continuing Education Units.
This course covers the lifecycle and habits of the forktailed bush katydid, Scudderia furcata, katydid-caused damage, other katydid species, and provides a management strategy. This course is available for free for those who do not need Continuing Education Units.
Who should enroll?
Pest management professionals and growers
Pest management professionals and growers
Continuing Education Units
California Department of Pesticide Regulation (1.0 hour Other), Certified Crop Advisor (0.5 IPM), and the Arizona Department of Agriculture (1.0 credit).
To get the Continuing Education Units certificate you will be charged a fee of $20. To encourage taking the course earlier in the year, we offer 50% off the regular price from January through October 31st – use the code ipm50 at checkout. You must download the certificate (PDF file) to receive your CEU credits.
California Department of Pesticide Regulation (1.0 hour Other), Certified Crop Advisor (0.5 IPM), and the Arizona Department of Agriculture (1.0 credit).
To get the Continuing Education Units certificate you will be charged a fee of $20. To encourage taking the course earlier in the year, we offer 50% off the regular price from January through October 31st – use the code ipm50 at checkout. You must download the certificate (PDF file) to receive your CEU credits.
Enrollment period
This course must be completed by December 30 of the current year. Download the certificate immediately when you complete the course. You will not be able to retrieve your certificate after December 30.
This course must be completed by December 30 of the current year. Download the certificate immediately when you complete the course. You will not be able to retrieve your certificate after December 30.
Need help?
For assistance with login, course enrollment, or payment, contact campushelp@extension.org. For assistance with progress through the course or certificate, contact creynolds@ucanr.edu.
For assistance with login, course enrollment, or payment, contact campushelp@extension.org. For assistance with progress through the course or certificate, contact creynolds@ucanr.edu.

- Technical support: Petr Kosina
- Technical support: Cheryl Reynolds
- Course author: Elizabeth Grafton-Cardwell
This course is for those who need continuing education units (CEUs) and a certificate. Make the purchase and after the payment you will be redirected to the course. Upon course completion you will be able to download the course certificate.
Course must be completed and certificate downloaded before December 30 of the current year.
To access the free version of this course without a certificate, click on the title below:
Forktailed Bush Katydid
Course must be completed and certificate downloaded before December 30 of the current year.
To access the free version of this course without a certificate, click on the title below:
Forktailed Bush Katydid
- Teacher: Petr Kosina
- Teacher: Cheryl Reynolds
This course covers the life cycle of Fuller rose beetle, Naupactus godmani, its natural enemies, how to survey for it, why it is of significance for export countries, and how to manage the pest using a systems approach. This course is available for free for those who do not need Continuing Education Units.
Who should enroll?
Pest management professionals and growersContinuing Education Units
California Department of Pesticide Regulation (1.0 hour Other), Certified Crop Advisor (0.5 IPM), and the Arizona Department of Agriculture (1.0 credit). To get the Continuing Education Units certificate you will be charged a fee of $20. To encourage taking the course earlier in the year, we offer 50% off the regular price from January through October 31st – use the code ipm50 at checkout. You must download the certificate (PDF file) to receive your CEU credits.
Enrollment period
This course must be completed by December 30 of the current year. Download the certificate immediately when you complete the course. You will not be able to retrieve your certificate after December 30.Need help?
For assistance with login, course enrollment, or payment, contact campushelp@extension.org. For assistance with progress through the course or certificate, contact creynolds@ucanr.edu.
- Technical support: Petr Kosina
- Technical support: Cheryl Reynolds
- Course author: Elizabeth Grafton-Cardwell
- Instructional design: Stephanie Parreira
This course is for those who need continuing education units (CEUs) and a certificate. Make the purchase and after the payment you will be redirected to the course. Upon course completion you will be able to download the course certificate.
Course must be completed and certificate downloaded before December 30 of the current year.
To access the free version of this course without a certificate, click on the title below:
Fuller Rose Beetle
Course must be completed and certificate downloaded before December 30 of the current year.
To access the free version of this course without a certificate, click on the title below:
Fuller Rose Beetle
- Teacher: Petr Kosina
- Teacher: Cheryl Reynolds