Posts Tagged: IPM
Pests have always been a bane of human existence. Modern society has developed effective pest management, “but there is no kind and gentle way to kill things,” said Brian Leahy, the director of the California Department of Pesticide Regulation, in remarks at the April 2018 IPM Summit.
The ever increasing incidence of invasive pests and the concerns about how to manage them will be a continuing challenge. Leahy said society is on a pest treadmill; and the best way to address it is with integrated pest management (IPM).
The concept of integrated pest management emerged 60 years ago when scientists recognized that imposing a harsh chemical on a natural system threw it off kilter, often causing unexpected, usually negative consequences. They realized that combining an array of pest control methods – such as careful supervision of insect levels, promotion of beneficial insects, and using less harsh products – would be more effective, safer for families and farmworkers, and kinder to the environment in the long run.
And yet, pesticides are still widely used in agricultural, horticultural and structural systems.
“We need to make IPM more robust,” said Pete Goodell, UC IPM advisor emeritus who spent 36 years as an IPM researcher, leader and teacher. “We need to make IPM easier to adopt.”
The meeting in Davis brought together nearly 200 people engaged in the science, business and regulation of pest management. They were assembled to address the tensions around pesticides and their alternatives, and usher in a new generation of researchers and practitioners to maintain and expand on six decades of progress in integrated pest management.
The IPM Summit is the final chapter of a collaborative effort titled “The Pests, Pesticides & IPM Project,” which was funded by DPR to enhance dialog about pest management. The project leader is Lori Berger, UC IPM academic coordinator.
“This project addresses the challenges pests pose to society,” Berger said. “We want to increase adoption of IPM practices on farms, and also in schools, homes, museums and golf courses. We're all in this together.”
One example of urban IPM efforts was presented by the IPM Summit keynote speaker Kelly Middleton, director of community affairs for the Greater Los Angeles County Vector Control District. She outlined the substantial public health concerns associated with pest control in California's largest urban area. A primary target is mosquitos.
“In the early 1900s, vector control started with concerns about malaria and mosquito populations,” Middleton said.
Over decades, the vector control district worked behind the scenes to keep mosquito populations in check. But in recent years, new species of mosquitos capable of spreading Zika, West Nile encephalitis, chikungunya and yellow fever have made their way to LA, intensifying concerns.
A key IPM tool in Los Angeles is minimizing standing water where mosquitos can breed. With year-round water flow irrigating vast landscapes and concrete drainages that inhibit infiltration, the vector district is faced with mosquito breeding grounds created by “urban drool,” Middleton said.
Trash rife with nutrients – such as discarded food and plant materials – are perfect nourishment for immature mosquitos, a condition referred to as “urban gruel.”
Higher temperatures predicted because of climate change only threaten to exacerbate the problem.
“A warming world is a sicker world,” Middleton said.
An effective IPM approach to mosquitos is short-circuiting their reproduction opportunities by enlisting residents to maintain swimming pools, drain any receptacles that can capture rainwater or irrigation, and be vigilant about basins containing water in their environments.
These efforts are emblematic of the societal collaboration that can tackle pest problems without pesticides.
In his IPM Summit presentation, Goodell called for public sector investment in basic research, applied research, extension and education to find IPM solutions and encourage implementation. He appealed for IPM outreach to include community organizations, home owners associations and other non-traditional partners. He suggested agriculture take advantage of farmworkers' presence in the field for early pest detection.
“Technical pest management skills are critical, but it's connections with people that are key to bringing about change,” Goodell said.
While students and teachers were enjoying summer break, an amendment to the Healthy Schools Act (HSA) went into effect on July 1. It requires teachers, custodians, administrators, other staff or volunteers, and licensed pest management professionals applying any pesticide (this includes disinfectants and antimicrobials) at a school site to take an annual training course covering school integrated pest management (IPM). The training course must be approved by the California Department of Pesticide Regulation (DPR).
An online course, Providing Integrated Pest Management Services in Schools and Child Care Settings, developed by the UC ANR Statewide IPM Program and the Center for Environmental Research and Children's Health (CERCH), has recently been approved by DPR to satisfy the annual training requirement of the HSA. Although this course was designed for licensed pest management professionals, anyone applying any type of pesticide in schools or child care centers will benefit from the course.
IPM is a strategy that focuses on long-term prevention of pests through a combination of techniques such as monitoring for pest presence, cleaning up food sources, sealing up cracks, and excluding pests with screens. Effective pesticides that pose the least possible hazard and that minimize harm to people, property, and the environment are used only after careful monitoring indicates they are needed.
The HSA encourages the use of IPM in schools and child care centers and gives parents and the public the ability to know when and where certain pesticides are used in these facilities. It was originally signed into California law in September 2000 and is located in four different California codes: education, food and agricultural, business and professions, and health and safety. The law has been amended several times. The most recent revision to the HSA was signed into law in September 2014 by Gov. Brown.
Prior to July 1, schools were already required to do the following:
- Designate an IPM coordinator at the school or district level to make sure the requirements of the HSA are met
- Create an IPM plan
- Provide annual written notification to all parents and staff of pesticide products intended for use at the school site during the year and allow the opportunity for them to be notified before certain applications
- Post warning signs where certain pesticides are applied
- Keep records of pesticide applications
- Send pesticide use reports to DPR annually
Some pesticide products are exempt from the IPM plan, notification, posting, recordkeeping, and reporting* requirements of the HSA at school sites. These are reduced-risk pesticide products, and their use is encouraged at schools if pesticides are deemed necessary. These include:
- Self-contained baits or traps
- Gels or pastes used indoors in cracks and crevices
- Antimicrobials, including sanitizers and disinfectants
- Pesticides exempt from registration, such as food grade oils
However, these products are NOT exempt from the Healthy Schools Act annual training requirement that went into effect July 1. Anyone who uses these products—a licensed professional, school staff or child care staff—is still required to take the HSA annual training course.
To satisfy this annual training requirement, take the free UC IPM online course by visiting the UC IPM online training webpage. For more on school and child care IPM and other courses that satisfy the Healthy Schools Act training requirement, visit the DPR website.
*Licensed pest management professionals hired to apply pesticides at schools or licensed child care centers must continue to submit their regular pesticide reports of ALL registered pesticides to DPR annually and to the county monthly.
Most people deal with ants around their home at some point. Because most ants live outdoors, focus efforts on keeping ants from entering buildings by caulking entryways. Follow good sanitation practices to make your home less attractive to ants. Spraying ants inside the home will not prevent more ants from entering. Use baits to control the ant colony. Pesticide baits work by attracting worker ants who then take the poison back to the nest where the entire colony, including queens, can be killed. In the landscape, ants protect honeydew-producing pest insects from predators, so use sticky barriers or insecticide baits to keep ants out of trees and shrubs.
- Find out more at http://www.ipm.ucanr.edu/QT/antscard.html
Aphids can curl leaves and produce sticky honeydew, but they rarely kill plants and you usually can wash them off with water. When aphid numbers get high, natural enemies such as lady beetles (lady bugs), lacewings, syrphid fly larvae, soldier beetles and others frequently feed on them, eliminating the need for pesticides. Protect these good bugs by avoiding the use of insecticides that can be toxic to a broad variety of insects. Ants protect aphids from these natural enemies, so keep ants away from your garden as well. When pesticides are necessary, use less toxic products such as insecticidal soaps and oils.
- Learn more about controlling aphids here: http://www.ipm.ucanr.edu/QT/aphidscard.html
3. Asian citrus psyllid and Huanglongbing disease
The Asian citrus psyllid (ACP) and the deadly bacterial disease it spreads, Huanglongbing (HLB), threaten citrus trees in backyards and on farms. There is no cure or effective control method for HLB disease. All types of citrus—including oranges, grapefruit, lemons, and mandarins—are affected as well as a few closely related ornamentals. ACP and HLB have already devastated the Florida citrus industry, and now that it is in the Western U.S. it is threatening the California citrus industry as well.
- See where the outbreaks are in California with our helpful Asian citrus psyllid website: http://ucanr.edu/sites/ACP/Distribution_of_ACP_in_California/
- Contact your agricultural commissioner's office, or call the California Department of Food and Agriculture (CDFA) Exotic Pest Hotline at 1-800-491-1899 to confirm a find. Learn more about ACP here: http://www.ipm.ucanr.edu/QT/asiancitruscard.html
Gophers are small burrowing rodents that feed on roots of many types of plants. A single gopher can ruin a garden in a short time, and gopher gnawing can damage irrigation lines and sprinkler systems. In lawns, their mounds are unsightly and interfere with mowing. Early detection is critical to prevent damage. Use both traps and underground fencing to manage gopher problems. Toxic baits are available but can pose threats to wildlife, pets, and children, especially in backyard situations.
- Learn more about protecting your garden and landscape from gophers here: http://www.ipm.ucanr.edu/QT/gopherscard.html
5. Leaf-feeding caterpillars
Caterpillars, which are the larvae of butterflies and moths, damage plants by chewing on leaves, flowers, shoots, and fruit. Caterpillars in fruit or wood can be difficult to manage because they are hidden most of their life and can cause serious damage even when numbers are low. However, many plants, especially perennials, can tolerate substantial leaf damage, so a few leaf-feeding caterpillars often aren't a concern. Handpicking and beneficial predators and parasites often provide sufficient control. Look for feeding holes, excrement, webbed or rolled leaves, caterpillars, eggs, and good bugs.
- Learn more here:http://www.ipm.ucanr.edu/QT/lfcaterpillarscard.html
6. Peach leaf curl
Peach leaf curl is a fungal disease that affects only peach and nectarine trees. Distorted, reddened foliage in the spring is a distinctive symptom. New leaves and shoots thicken and pucker and later may die and fall off. An infection that continues untreated for several years can lead to a tree's decline. To prevent peach leaf curl, treat peach and nectarine trees with a copper fungicide every year after leaves fall. After symptoms appear in the spring, any treatment will not be effective. When planting new trees, consider buying peach tree varieties that are resistant to the disease.
- To learn more about preventing peach leaf curl click here: http://www.ipm.ucanr.edu/QT/peachleafcurlcard.html
Rats eat and contaminate food, garden produce, and fruit, and transmit diseases to humans and pets. Manage rats by removing food and shelter, eliminating entryways into buildings, and trapping. Snap traps are the safest, most effective, and most economical way to trap rats. For Norway rats, place traps close to walls, behind objects, in dark corners, and in places where you have found rat droppings. For roof rats, place traps in off-the-ground locations such as ledges, shelves, branches, fences, pipes, or overhead beams. Ensure traps are out of reach of children and pets.
- Learn more about preventing and controlling rats here: http://www.ipm.ucanr.edu/QT/ratscard.html
Scale insects suck plant juices and are pests of many trees and shrubs. Infestations can cause yellowing or premature dropping of leaves, sticky honeydew, and blackish sooty mold. Plant parts can distort or die back, depending on the species and abundance of scales. Most plants tolerate low to moderate numbers of scales. Provide plants with proper cultural care, especially irrigation. Encourage scale predators such as lady beetles or lacewings and look for parasite emergence holes in scale covers. Use sticky barriers or insecticide baits to selectively control scale-tending ants. Consider replacing problem-prone plants because most scales are highly specific to certain plants.
- Learn more about controlling scale populations here: http://www.ipm.ucanr.edu/QT/scalescard.html
9. Snails and slugs
These slimy mollusks emerge from hiding at night and chew holes in leaves and flowers of many succulent garden plants and fruit. Management requires a vigilant and integrated approach that includes eliminating moisture and hiding spots, trapping, setting up barriers, and handpicking. Regularly remove snails from shelters you can't eliminate such as low ledges on fences, undersides of decks, and meter boxes. Place traps in your garden and dispose of trapped snails and slugs daily. Reduce moist surfaces by switching to drip irrigation or watering in the morning rather than later in the day. Consider snail-proof plants such as impatiens, geraniums, begonias, lantana, nasturtiums, and many plants with stiff leaves and highly scented foliage such as sage, rosemary, and lavender.
- Learn more about controlling snails and slugs with and without pesticides in your garden here: http://www.ipm.ucanr.edu/QT/snailsslugscard.html
10. Weeds in landscapes
Prevent weed invasions in new beds with good site preparation. Keep weeds out with an integrated program that includes competitive plants, mulches, and hand removal. Be particularly vigilant about removing aggressive perennial weeds. You rarely should need herbicides in established landscape plantings. Mulches prevent weed seed germination by blocking sunlight. Remove small weeds by hand before they flower and set seed. Use shallow cultivation or hoeing to remove annual weeds from ornamental plantings. Only use herbicides for special-problem situations before establishing new plantings or for difficult-to-control perennial weeds.
- Learn more about controlling weeds in your landscape here: http://www.ipm.ucanr.edu/QT/landscapeweedscard.html
To see all of the University of California's Statewide Integrated Pest Management Program's information on home, garden, and landscape pests, visit http://www.ipm.ucanr.edu/PMG/menu.homegarden.html
For other short pest “Quick Tips” like the ten above, see http://www.ipm.ucanr.edu/QT/
To read even more in-depth, peer-reviewed information on many other common home and landscape pests in California, see the Pest Notes series at http://www.ipm.ucanr.edu/PMG/PESTNOTES/index.html
Download your free UC IPM Quick Tips Booklet of the Top Ten Pests in Gardens and Landscapes and How to Control Them with the link below!/h3>/h3>/h3>/h3>/h3>/h3>/h3>/h3>/h3>/h3>/h3>/h3>/h3>/span>/h2>
Myanmar (formerly Burma) is located in Southeast Asia, bordered by Bangladesh, India, China, Laos and Thailand. I was asked by the United States Agency for International Development (U.S. AID) to travel to Myanmar to use my training and experience as an academic advisor affiliated with the UC Statewide Integrated Pest Management Program and UC Cooperative Extension in Riverside County to share information about basic IPM and pesticide safety.
With the use of small tractors and other mechanized farm equipment, agricultural development is slightly more advanced in Myanmar than Bangladesh, which I visited in September 2015. Chemical pesticide use in Myanmar is intensive with little regulation or guidance. Chemical contamination of agricultural crops is widespread and mass poisoning does occur.
U.S. AID works to end global poverty and help societies become more independent. One way they do that is by helping countries like Myanmar improve their agricultural development. U.S. AID and Winrock International's Value Chain Project sent me to Myanmar as part of an ongoing effort in Asia to instruct growers in basic IPM and the safe and effective use of pesticides.
The growers lack of information on using pesticides safely and effectively seemed to be a recurring theme in Southeast Asia. The growers were not given access to pesticide labels or safety data sheets. In fact, the growers are given virtually no information at all on how to use the chemicals they were applying on their farms. The chemical manufacturers are responsible for this.
Farmers would often apply materials multiple times a week (sometimes more frequently), not knowing about the recommended application rate, re-entry or harvest interval. There's a real need for education in Southeast Asia. Ultimately, the growers and the consumers of contaminated agricultural products are the ones suffering.
Over two weeks, I held four all-day workshops, mostly for growers, with a final workshop with representatives of local media agencies to teach them basic pest management principles and pesticide safety. When I asked workshop participants if any of them knew someone who had gotten sick or had died from pesticide exposure, virtually everyone raised their hands.
Some growers acknowledged that their practices were making them sick, but that they felt they had few options available to them. As a result, the US-based NGO Internews created a public service announcement (PSA) illustrating the use of personal protective equipment when applying pesticides in Myanmar. The PSA is currently being broadcast on Myanmar television and can be seen below.
This opportunity to educate the public on safe pesticide use is not enough. I recommend monthly pesticide tours be set up across the country to emphasize the need for safe and effective use of pesticides. The use of extension outreach is invaluable in situations like this.
The facilitation of the University of California's Global Food Initiative by U.S. AID and Winrock International is extremely useful. The world as we know it is shrinking with globalization of people and products. We need to reach out to others and give them the benefit of our experience. UC IPM is doing that.
UC Agriculture and Natural Resources program assistant Maria Alfaro, part of the Statewide Integrated Pest Management Program, got to see first-hand the role of women in Nigerian agriculture. As part of a three-week volunteer project with Winrock International, Alfaro traveled throughout Nigeria visiting farms, co-ops, and local and state farming and agricultural agencies.
“The role of women varied by region, crop and local customs," Alfaro said. "In some of the northern regions, women were involved in all aspects of farming, including applying pesticides. Yet in other regions of the South, women were only involved in small, subsistence farming, and did not apply pesticides."
As Alfaro conducted interviews with various individuals from local and state agencies, she was consistently told that for the family's needs to be met, the profits from farming should go to the women.
Alfaro was told in other interviews that the best way to disseminate pesticide safety information to families was “through the moms!”
At Alfaro's final stop in Ebonyi State, women expressed their appreciation for her coming and sharing important information on how to protect themselves from the pesticides they use on their farms.
“It was a great way to end the conversations on the ground,” said Alfaro.
Alfaro's next task is to report her findings and recommendations, which include more training in a train-the-trainer format. In this type of training, students who are trained in an approved pesticide safety course become qualified to train pesticide handlers and field workers.
“Many farmers are eager to learn about what they can do to continue using pesticides in a safe and effective manner in combination with learning integrated pest management methods of control,” said Alfaro.
Winrock International is funded by the United States Agency for International Development (USAID) Farmer-to-Farmer Program.