PMSP for Dry Bulb Storage Onions in the United States

Source

Title PMSP for Dry Bulb Storage Onions in the United States
PDF Document https://ipmdata.ipmcenters.org/documents/pmsps/USonionPMSP.pdf
Source Type Pest Management Strategic Plans
Source Date 02/12/2013
Settings Onion, Onion, Bulb
Region Western
States Alaska, Alabama, Arkansas, Arizona, California, Canada, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Iowa, Idaho, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, Montana, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New Mexico, Nevada, New York, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, Vermont, Washington, Wisconsin, West Virginia, Wyoming

Executive Summary

Key Pests



PDF

https://ipmdata.ipmcenters.org/documents/pmsps/USonionPMSP.pdf

Settings/Crops

Priorities

Category Rank Pest Type Pest Crop Stage Priority
Extension/Outreach 1 All 6- to 12-Inch Shoot Communicate to consumers and regulators that onion growers practice IPM; explain which practices are being used.
Extension/Outreach 1 Insects Invite EPA to visit onion fields in the western states to observe production practices and pest problems.
Extension/Outreach 1 Insects Educate regulators on the need for a speedy registration process.
Extension/Outreach 1 Insects Educate growers and crop consultants about checking for thrips populations relative to time of day.
Extension/Outreach 1 Insects Educate growers about definition of lifting and harvest and how each relates to PHI.
Extension/Outreach 1 Nematodes Develop Extension publications that highlight the latest nematode research.
Extension/Outreach 1 Nematodes Promote pre-plant soil testing for nematodes.
Extension/Outreach 1 Pathogens Educate growers about the use of soil testing and economic thresholds.
Extension/Outreach 1 Pathogens Educate regulators on the specific disease control needs in onion production.
Extension/Outreach 1 Pathogens Provide risk assessment data to EPA for reregistration purposes.
Extension/Outreach 1 Pathogens Educate growers about definition of lifting and harvest and how each relates to PHI.
Extension/Outreach 1 Weeds Educate growers on the risks/benefits of herbicide applications (i.e., damage from the weeds vs. damage to the onions).
Extension/Outreach 2 All 6- to 12-Inch Shoot Educate regulators about onion crop production operations and pest management practices, which will help them better understand the pest management needs in onions.
Extension/Outreach 2 Insects Invite EPA to visit onion fields in the western states to observe production practices and pest problems.
Extension/Outreach 2 Insects Educate growers and crop consultants about the difference between 2ee states and the implications.
Extension/Outreach 2 Insects Educate EPA and regulators about harvest and pre-harvest activities (lifting, curing, removal from the field) and the length of time involved.
Extension/Outreach 2 Nematodes Organize informational meetings for onion growers about nematodes’ biology, ecology, and management.
Extension/Outreach 2 Nematodes Develop an Extension publication about the biology, ecology, and management of nematodes in onion production.
Extension/Outreach 2 Pathogens Educate EPA and regulators about harvest and pre-harvest activities (lifting, curing, removal from the field) and the length of time involved.
Extension/Outreach 2 Pathogens Promote IPM and pest alerts to growers.
Extension/Outreach 3 All 6- to 12-Inch Shoot Promote more interstate exchange of information, expertise, and personnel at the industry, university, and state agency levels.
Extension/Outreach 3 Insects Educate growers on importance of resistance management.
Extension/Outreach 3 Insects Invite EPA to visit onion fields in the western states to observe production practices and pest problems.
Extension/Outreach 3 Nematodes Increase grower awareness about nematode quarantine in onions.
Extension/Outreach 3 Pathogens Invite EPA to visit onion fields in the western states to observe production practices and pest problems.
Extension/Outreach 3 Pathogens Organize field tours with EPA to illustrate pest management needs.
Extension/Outreach 4 All 6- to 12-Inch Shoot Educate regulators about the importance of EBDC fungicides to onion production and why it is important to maintain their registration.
Extension/Outreach 4 Insects Demonstrate to growers and crop consultants the diagnostic tools for identifying thrips species in the field.
Extension/Outreach 4 Pathogens Develop disease modeling/forecasting for Washington and integrate with regional pest reporting networks.
Extension/Outreach 5 All 6- to 12-Inch Shoot Organize onion field tours for regulators and policy makers to show them the field operations used in onion production and to demonstrate why some current pest management strategies are not working.
Extension/Outreach 5 Insects Invite EPA to visit onion fields in the western states to observe production practices and pest problems.
Extension/Outreach 6 All 6- to 12-Inch Shoot Maintain or increase funding for Extension and research programs at land-grant universities; recent budgetary cutbacks and personnel layoffs threaten the viability of IPM implementation and research. Methods of dispersal of information between publicly funded agencies and the onion industry are slowly disappearin
Regulatory 1 All 6- to 12-Inch Shoot Encourage EPA to expedite the registration of current pesticide petitions for acibenzolar (Actigard) for iris yellow spot virus and bacterial disease control and the herbicides bentazon (Basagran), dimethenamid (Outlook), ethofumesate (Nortron), flumioxazin (Valor), and fluroxypyr (Starane) for weed control.
Regulatory 1 Insects Registration of alternative products such as fipronil seed treatment for control of maggots, cyfluthrin + tebupirimphos (Aztec) for control of wireworms
Regulatory 1 Insects Expedite registration of fipronil for onion maggot control.
Regulatory 1 Insects Expedite registration of fipronil for onion maggot control.
Regulatory 1 Insects Pursue 2ee for some of the insecticides: need standardized use across the western states to control pests not on labels.
Regulatory 1 Insects Work with EPA to change their definition of harvest. “Harvest” is when the onions are removed from the field; current EPA definition of harvest is actually what growers define as “lifting.” This is a critical issue because the definition of harvest determines PHI and, thus, which pesticides can be used when the onions are reaching maturity.
Regulatory 1 Nematodes Enforce and strengthen the nematode quarantine program.
Regulatory 1 Nematodes Register Inline, the drip irrigation formulation of dichloropropene + chloropicrin.
Regulatory 1 Pathogens Expedite new pesticide registrations for disease control at planting.
Regulatory 1 Pathogens Work with EPA to change their definition of harvest. “Harvest” is when the onions are removed from the field; current EPA definition of harvest is actually what growers define as “lifting.” This is a critical issue because the definition of harvest determines PHI and, thus, which pesticides can be used when the onions are reaching maturity.
Regulatory 1 Pathogens Expedite registration of acibenzolar (Actigard) through the IR-4 program.
Regulatory 1 Weeds Register bentazon (Basagran) for yellow nutsedge control.
Regulatory 1 Weeds Expedite registration of ethofumesate (Nortron).
Regulatory 1 Weeds Maintain registration of fumigants.
Regulatory 2 All 6- to 12-Inch Shoot Establish a tracking system for new pesticide registrations indicating stage of the registration process, enabling growers and commodity representatives to provide input where needed.
Regulatory 2 Insects Ensure that chemical companies develop, and EPA register, new products with resistance management in mind.
Regulatory 2 Insects Develop uniform protocol for phytosanitary requirements related to various pests.
Regulatory 2 Nematodes Expedite the registration of methyl iodide (iodomethane/Midas).
Regulatory 2 Pathogens Continue the white rot control order for Idaho and for Malheur County, Oregon.
Regulatory 2 Pathogens Develop uniform protocol for phytosanitary requirements related to various pests.
Regulatory 2 Pathogens Support the continued registration of EBDC fungicides.
Regulatory 2 Weeds Expedite registration of dimethenamid (Outlook), flumioxazin (Valor), ethofumesate (Nortron), and fluroxypyr (Starane).
Regulatory 2 Weeds Explore the possibility of registering propachlor (Ramrod) in onions.
Regulatory 2 Weeds Expand the use of soil fumigants.
Regulatory 3 All 6- to 12-Inch Shoot Work with EPA to change their definition of harvest. Harvest is when the onions are removed from the field; current EPA definition of harvest is actually what growers define as “lifting.” This is a critical issue because the definition of harvest determines PHI and, thus, which pesticides can be used when the onions are reaching maturity.
Regulatory 3 Insects Expedite registration of spinosad for control of thrips.
Regulatory 3 Nematodes Begin the process for registration of fosthiazate; work with IR-4.
Regulatory 3 Pathogens Continue the cull disposal order for Idaho and for Malheur County, Oregon.
Regulatory 3 Weeds Expedite methyl iodide (iodomethane, Midas) registration.
Regulatory 4 All 6- to 12-Inch Shoot Support the continued registration of EBDC fungicides.
Regulatory 5 All 6- to 12-Inch Shoot Develop a viable system for inspecting imported onions for problem pests (e.g., thrips) and for illegal pesticide residues.
Regulatory 6 All 6- to 12-Inch Shoot Be consistent in 2ee labels for all Western states growing onions.
Research 1 All 6- to 12-Inch Shoot Investigate biology, ecology, and management of iris yellow spot virus.
Research 1 Insects Identify the impacts of IPM and cultural practices on bulb mites.
Research 1 Insects Research chemical, cultural, and biological controls for onion and seed corn maggot.
Research 1 Insects Screen new chemistries for thrips (seed, in-furrow, and foliar treatments).
Research 1 Insects Research suppression of thrips damage on red onions (sugary scale)
Research 1 Nematodes Research nematode interaction with other soilborne pathogens.
Research 1 Nematodes Determine the effect of a green manure crop on nematode populations and impact on onions.
Research 1 Pathogens Develop a protocol to test soils for soilborne organisms.
Research 1 Pathogens Evaluate new fungicides as in-furrow and seed treatments for control of damping off complex and white rot diseases.
Research 1 Pathogens Determine efficacy of disinfectants for management of the bacterial diseases.
Research 1 Weeds Research post-emergence yellow nutsedge control.
Research 1 Weeds Develop a better understanding of the effects of fumigation on weed propagules (esp. nutsedge, quackgrass, Canada thistle, field bindweed).
Research 1 Weeds Identify replacements for DCPA (Dacthal).
Research 2 All 6- to 12-Inch Shoot Investigate biology, ecology, and management of yellow nutsedge specific to onion production.
Research 2 Insects Determine the effects of green manure crops on insect pests found in the soil prior to planting.
Research 2 Insects Identify systemic insecticides (applied at planting) that might be efficacious for onion and western flower thrips.
Research 2 Insects Evaluate thrips suppression treatments (imidacloprid, thiamethoxam) to reduce iris yellow spot virus potential.
Research 2 Insects Further research efficacy of ozone generators for control of thrips during storage.
Research 2 Nematodes Explore efficacy of non-fumigant nematicides.
Research 2 Nematodes Investigate efficacy of rapeseed meal as a soil amendment for nematode control.
Research 2 Pathogens Establish economic impact thresholds for soilborne insects to aid in IPM decisions.
Research 2 Pathogens Evaluate biopesticides for damping off complex and white rot diseases.
Research 2 Pathogens Further research efficacy of ozone generators for control of diseases during storage.
Research 2 Pathogens Develop new chemistry and alternative chemistry, such as acibenzolar (Actigard), and determine efficacy for the bacterial diseases.
Research 2 Weeds Research volunteer potato management.
Research 2 Weeds Determine efficacy of other pre-plant herbicide applications for nutsedge control, e.g., fall-applied metolachlor (Dual), fallow-applied EPTC (Eptam).
Research 2 Weeds Identify more effective pre-emergence herbicides.
Research 3 All 6- to 12-Inch Shoot Identify effective control measures for onion thrips and western flower thrips.
Research 3 Insects Develop a prediction model for potential for maggot damage.
Research 3 Insects Develop thrips-resistant cultivars.
Research 3 Nematodes Determine the impact of micro nutrient applications on nematodes.
Research 3 Nematodes Explore efficacy of seed treated with nematicides.
Research 3 Pathogens Research on the biology and ecology of iris yellow spot virus.
Research 3 Pathogens Identify effective fungicides for control of Botrytis neck rot disease (caused by Botrytis allii).
Research 3 Pathogens Research control of neck rot
Research 3 Weeds Find additional post-emergence herbicides with different modes of action.
Research 3 Weeds Develop a better understanding of the effects of green manure crops on weed propagules.
Research 3 Weeds Determine efficacy and crop safety of dimethenamid-P (Outlook) when applied as a pre-emergence herbicide.
Research 4 All 6- to 12-Inch Shoot Screen new insecticides, fungicides, and herbicides with different modes of action for efficacy and resistance management.
Research 4 Insects Investigate weed hosts as overwintering sites for thrips.
Research 4 Insects Investigate efficacy of treating storage areas for thrips control
Research 4 Nematodes Develop nematode-resistant onion cultivars.
Research 4 Nematodes Investigate impact of green manure crops, mustard and rapeseed meal, and soil fertilizer on nematode populations.
Research 4 Pathogens Further investigate the importance and management of seedborne diseases.
Research 4 Pathogens Investigate efficacy of treating storage areas for plant pathogen management (black mold, Botrytis).
Research 4 Pathogens Develop resistance management strategies for all diseases.
Research 4 Weeds Find herbicides or other techniques for dodder control.
Research 4 Weeds Determine the effects of crop rotation systems on weed control
Research 5 All 6- to 12-Inch Shoot Identify new control measures for neck rot caused by Botrytis and develop a better understanding of the biology and ecology of the disease.
Research 5 Insects Investigate weed hosts as overwintering sites for thrips.
Research 5 Insects Explore alternative uses for cull onions.
Research 5 Nematodes Refine rate and application method of metam sodium soil fumigant.
Research 5 Nematodes Develop nematode-resistant onion cultivars.
Research 5 Pathogens Explore alternative uses for cull onions.
Research 5 Pathogens Research the general biology, transmission vectors, and alternative hosts for iris yellow spot virus.
Research 5 Weeds Investigate effect of early-season, post-emergence weed control on onion quality.
Research 6 All 6- to 12-Inch Shoot Identify new control measures for onion maggot and seed corn maggot.
Research 6 Insects Determine which species of thrips is being affected by pesticide application; time of day of the application and of the evaluation may be critical.
Research 6 Nematodes Determine efficacy and rate of granular fumigant dazomet (Basamid).
Research 6 Nematodes Evaluate the impact of sodium methyldithiocarbamate (Metam Sodium) on nematode control.
Research 6 Pathogens Research biopesticides including new alternatives such as bacteriophages.
Research 6 Pathogens Investigate translucent scale of onions in storage (an abiotic condition).
Research 6 Weeds Research herbicides or other techniques for late-season weed management.
Research 7 All 6- to 12-Inch Shoot Maintain or increase funding for Extension and research programs at land-grant universities; recent budgetary cutbacks and personnel layoffs threaten the viability of IPM research.
Research 7 Insects Evaluate rotational strategies of new pesticides and how they might fit IPM and entire cropping system.
Research 7 Insects Develop more rapid and effective diagnostic tests to quantify pest incidence in bulb onions.
Research 7 Nematodes Determine the interaction of nematodes with soilborne diseases.
Research 7 Pathogens Develop more rapid and effective diagnostic tests to quantify pest incidence in bulb onions.
Research 7 Pathogens Develop disease-resistant cultivars.
Research 8 Insects Evaluate effectiveness of aerobic compost tea for thrips control.
Research 8 Nematodes Determine the impact of lesion nematode on onions in the western United States.
Research 9 Nematodes Refine use pattern and rate of methyl iodide (iodomethane, Midas) and fosthiazate.