Clt lM t fOi Thi dIiYll S tCultural Management of Onion Thrips and … · id tifi ti d th i li t h...
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C lt lM t fO i Th i dI i Y ll S t Cultural Management of Onion Thrips and Iris Yellow Spot Cultural Management of Onion Thrips and Iris Yellow Spot Cultural Management of Onion Thrips and Iris Yellow Spot Vi Vir s Virus Virus Virus J if R (Ut h R h & Ed ti G t) Jennifer Reeve (Utah – Research & Education Grant) Jennifer Reeve (Utah – Research & Education Grant) j S R lt Project Number: SW08-076 Actions: Results: Project Number: SW08 076 Actions: IYSV Di i During an August 12 field day attended by 55 onion growers and extension Title: Cultural Management of Onion Thrips and Iris Yellow Spot Virus IYSV Diagnosis During an August 12 field day, attended by 55 onion growers and extension Title: Cultural Management of Onion Thrips and Iris Yellow Spot Virus personnel the project team introduced the project and presented the idea of Pi i lI ti t To date 4 500 samples of mostly onions and some weeds have been tested to personnel, the project team introduced the project and presented the idea of Principal Investigator: To date, 4,500 samples of mostly onions and some weeds have been tested to a whole farm approach to onion thrips and IYSV management IYSV field J if R A it tP f dt i th h t i id d it f IYSV i d d i a whole-farm approach to onion thrips and IYSV management. IYSV field Jennifer Reeve, Assistant Professor determine the host range, incidence and severity of IYSV in and around onion id tifi ti d th i li t hi d t td O i dS ti bl A i lt fi ld C id bl i ti bt fi ld dt td S f l th identification and thrips sampling techniques were demonstrated. Organic and Sustainable Agriculture fields. Considerable variation between fields was detected. So far, only three 4820 Old M i Hill i f dh d ii f IYSV 4820 Old Main Hill species of weed have tested positive for IYSV. Early results from summer 2008 activities will be presented at winter U hS Ui i species of weed have tested positive for IYSV. Early results from summer 2008 activities will be presented at winter Utah State University meetings Utah State University L UT 84322 4820 meetings. Logan, UT 84322-4820 Thrips Evaluation Logan, UT 84322 4820 (435) 797 3192 Thrips Evaluation (435) 797-3192 D it l t ti th 2008 th i l ti b l (435) 797 3192 if @ d Despite a slow start in the 2008 season, thrips populations rose above normal. [email protected] Despite a slow start in the 2008 season, thrips populations rose above normal. S li h b l df hi l hi i i( il ik ) [email protected] Sampling has been completed for thrips on plants, thrips in air (aerial sticky trap), P d Sampling has been completed for thrips on plants, thrips in air (aerial sticky trap), Producers: eggs per leaf and hatched eggs per leaf The data are being counted and Sampling an onion field for IYSV K ll dJ G D iC t Ut h eggs per leaf and hatched eggs per leaf. The data are being counted and Sampling an onion field for IYSV Kelly and Jon Green, Davis County, Utah organized Rb t dB tF H Ut h organized. Robert and Bret Fowers, Hooper, Utah Wd N C i Ut h Soil and Plant N Wade Norman, Corinne, Utah Soil and Plant N M R d Bih Cit Ut h Morgan Reeder, Brigham City, Utah Soils and onions were sampled monthly from April to September and soil and Morgan Reeder, Brigham City, Utah Soils and onions were sampled monthly from April to September and soil and Cooperators at Utah State University tissue N tested Onions have been collected from all seeded onion fields for Cooperators at Utah State University tissue N tested. Onions have been collected from all seeded onion fields for Diane Alston Professor and Entomologist storage trials Diane Alston, Professor and Entomologist storage trials. Kent E ans Assistant Professor and Plant Pathologist Typical IYSV lesions with three thrips Kent Evans, Assistant Professor and Plant Pathologist K ill E i S i Typical IYSV lesions with three thrips f di it i ibl i th t D D tP f dV t bl S i li t Kaysville Experiment Station feeding sites visible in the center. Dan Drost, Professor and Vegetable Specialist Kaysville Experiment Station Rb W dA it P f fE i Wh t d lt t bli h d thi i df tilit t t t li d A sticky trap and jar of soapy Ruby Ward, Associate Professor of Economics Wheat and corn plots were established this spring and fertility treatments applied. A sticky trap and jar of soapy water, used to monitor thrips. water, used to monitor thrips. W t SARE G t $133 441 Morgan Reeder Farm Western SARE Grant: $133,441 Morgan Reeder Farm A i fh j i l h i d db An important part of the project is to evaluate the practices adopted by grower - Potential Benefits: An important part of the project is to evaluate the practices adopted by grower d h h df i hi f h h Potential Benefits: P i t f d i cooperator Morgan Reeder who has not sprayed for onion thrips for the past three Thi j di h d d i l iii ill h l Preparing to freeze dry onion cooperator Morgan Reeder, who has not sprayed for onion thrips for the past three This project and its outreach and educational activities will help growers: samples for IYSV testing Si i years Reeder’s practices include: This project and its outreach and educational activities will help growers: samples for IYSV testing. Situation: years. Reeder s practices include: I kill i id tif i IYSV i th fi ld Situation: A 50% d i i Ni • Improve skills in identifying IYSV in the field i ll i ( S ) d i hi h i bl fi bl • A 50% reduction in N input B f lt ti d d h tf t Iris yellow spot virus (IYSV) and onion thrips threaten sustainable, profitable A 50% reduction in N input A h i • Become more aware of alternative weed and crops hosts for pests Iris yellow spot virus (IYSV) and onion thrips threaten sustainable, profitable i d i i h dh i d • A corn versus wheat rotation d IYSV onion production in Utah and the Western United States • A corn versus wheat rotation and IYSV onion production in Utah and the Western United States. • Use of ‘MoreLife’ as a bio-stimulant and IYSV b h df i d l i • Use of MoreLife as a bio stimulant • Learn about the need for integrated solutions Onion growers in Utah rely on high risk insecticides for thrips management which Learn about the need for integrated solutions Onion growers in Utah rely on high risk insecticides for thrips management, which To experimentally evaluate Reeder’s practices as well as determine the effects of Th li t d fi ld t i l ill i d t di fh l t ti t has increased insecticide use and may increase the severity of IYSV outbreaks To experimentally evaluate Reeder s practices as well as determine the effects of The replicated field trials will improve understanding of how plant nutrient has increased insecticide use and may increase the severity of IYSV outbreaks. t th i d IYSV t li t d fi ld t i l ill b d tdi i d i ih l i hi trap crops on thrips and IYSV, two replicated field trials will be conducted in status, crop rotations and trap crops interact with or alter onion thrips Little is known about how to effectively manage IYSV – whether cultural practices t d th status, crop rotations and trap crops interact with or alter onion thrips f di h bi d hi ill h l i d l i d i Little is known about how to effectively manage IYSV whether cultural practices years two and three: feeding habits and movements This will help in developing production affect its spread and whether more intensive thrips insecticide programs reduce its feeding habits and movements. This will help in developing production affect its spread and whether more intensive thrips insecticide programs reduce its • Crop rotation and N management on 1 68 acres at the USU Kaysville strategies that minimize thrips predation and IYSV infection and spread incidence or severity • Crop rotation and N management on 1.68 acres at the USU Kaysville strategies that minimize thrips predation and IYSV infection and spread. incidence or severity. Experiment Station I d i ill h l d Nl hi h Experiment Station Improved nitrogen management will help reduce N leaching to the Objectives: Eff ti ft ( tb k h t dl h li ) i l i Improved nitrogen management will help reduce N leaching to the i d d di i id ill Objectives: • Effectiveness of trap crops (carrot, buckwheat and lacy phacelia) in luring environment, and reduced insecticide use will cut grower expenses. th i f i R d ’ th Ut h f environment, and reduced insecticide use will cut grower expenses. 1 Work with local growers to determine onion thrips and IYSV pressure in thrips away from onions on Reeder’s northern Utah farm 1. Work with local growers to determine onion thrips and IYSV pressure in primary Utah onion areas and correlate IYSV pressure to common farm primary Utah onion areas and correlate IYSV pressure to common farm Educational Activities (planned) practices Educational Activities (planned) practices Adi i li ll f i l hh lh d • A digital image gallery of onion plant growth health and pest symptoms 2 Determine the effects of crop and pest management strategies on thrips survival • A digital image gallery of onion plant growth, health and pest symptoms 2. Determine the effects of crop and pest management strategies on thrips survival • A web-based onion crop and pest advisory and population sizes • A web based onion crop and pest advisory and population sizes • Extension fact sheets and scientific papers • Extension fact sheets and scientific papers 3 E al ate nitrogen (N) inp ts N leaching potential alternati e fertili ers trap 3. Evaluate nitrogen (N) inputs, N leaching potential, alternative fertilizers, trap d t ti th i IYSV i i ld dt lit crops and rotation on thrips, IYSV, onion yields and storage quality 4 C d t kh d fi ld d t l ti f i th i 4. Conduct grower workshops and field days on control options of onion thrips Sticky trap demonstration at a field d IYSV Sticky trap demonstration at a field d and IYSV day. 5 C d t i d t b fit l i f d h t 5. Conduct economic and cost-benefit analysis of proposed changes to t f i th i d IYSV management of onion thrips and IYSV management of onion thrips and IYSV 6 Di i l h h i b ll i h I d j l d P j t i td t 6. Disseminate results through extension bulletins, the Internet, trade journals and Harvesting onions for grading and Sampling soil and plant tissue for N Project overview presented at summer 6. Disseminate results through extension bulletins, the Internet, trade journals and i ifi li Harvesting onions for grading and storage trials Sampling soil and plant tissue for N content field day August 12 2008 scientific literature storage trials. content. field day August 12, 2008. scientific literature
Transcript of Clt lM t fOi Thi dIiYll S tCultural Management of Onion Thrips and … · id tifi ti d th i li t h...
C lt l M t f O i Th i d I i Y ll S tCultural Management of Onion Thrips and Iris Yellow SpotCultural Management of Onion Thrips and Iris Yellow SpotCultural Management of Onion Thrips and Iris Yellow Spot Cu u ge e o O o ps d s e ow Spog p pViVir sVirusVirusVirus
J if R (Ut h R h & Ed ti G t)Jennifer Reeve (Utah – Research & Education Grant)Jennifer Reeve (Utah – Research & Education Grant)Je e ee e (Uta esea c & ducat o G a t)
j S R ltProject Number: SW08-076 Actions: Results:Project Number: SW08 076 Actions:IYSV Di i During an August 12 field day attended by 55 onion growers and extensionTitle: Cultural Management of Onion Thrips and Iris Yellow Spot Virus IYSV Diagnosis During an August 12 field day, attended by 55 onion growers and extension Title: Cultural Management of Onion Thrips and Iris Yellow Spot Virus g
personnel the project team introduced the project and presented the idea ofP i i l I ti t To date 4 500 samples of mostly onions and some weeds have been tested to personnel, the project team introduced the project and presented the idea of Principal Investigator: To date, 4,500 samples of mostly onions and some weeds have been tested to p p j p j p
a whole farm approach to onion thrips and IYSV management IYSV fieldp gJ if R A i t t P f
, , p yd t i th h t i id d it f IYSV i d d i a whole-farm approach to onion thrips and IYSV management. IYSV field
Jennifer Reeve, Assistant Professor determine the host range, incidence and severity of IYSV in and around onion pp p gid tifi ti d th i li t h i d t t d,
O i d S t i bl A i ltg , y
fi ld C id bl i ti b t fi ld d t t d S f l th identification and thrips sampling techniques were demonstrated.Organic and Sustainable Agriculture fields. Considerable variation between fields was detected. So far, only three p p g qg g4820 Old M i Hill
, yi f d h d i i f IYSV4820 Old Main Hill species of weed have tested positive for IYSV. Early results from summer 2008 activities will be presented at winter8 0 O d a
U h S U i ispecies of weed have tested positive for IYSV. Early results from summer 2008 activities will be presented at winter
Utah State University meetingsUtah State UniversityL UT 84322 4820
meetings.Logan, UT 84322-4820 Thrips EvaluationLogan, UT 84322 4820(435) 797 3192
Thrips Evaluation(435) 797-3192 D it l t t i th 2008 th i l ti b l(435) 797 3192
if @ dDespite a slow start in the 2008 season, thrips populations rose above normal.
[email protected] a slow start in the 2008 season, thrips populations rose above normal. S li h b l d f h i l h i i i ( i l i k )[email protected] Sampling has been completed for thrips on plants, thrips in air (aerial sticky trap),
P dSampling has been completed for thrips on plants, thrips in air (aerial sticky trap),
Producers: eggs per leaf and hatched eggs per leaf The data are being counted andSampling an onion field for IYSVK ll d J G D i C t Ut h
eggs per leaf and hatched eggs per leaf. The data are being counted and Sampling an onion field for IYSV Kelly and Jon Green, Davis County, Utah organizedy , y,R b t d B t F H Ut h
organized.Robert and Bret Fowers, Hooper, Utah, p ,W d N C i Ut h Soil and Plant NWade Norman, Corinne, Utah Soil and Plant N, ,M R d B i h Cit Ut hMorgan Reeder, Brigham City, Utah Soils and onions were sampled monthly from April to September and soil andMorgan Reeder, Brigham City, Utah Soils and onions were sampled monthly from April to September and soil and
Cooperators at Utah State University tissue N tested Onions have been collected from all seeded onion fields forCooperators at Utah State University tissue N tested. Onions have been collected from all seeded onion fields for p yDiane Alston Professor and Entomologist storage trialsDiane Alston, Professor and Entomologist storage trials., gKent E ans Assistant Professor and Plant Pathologist
gTypical IYSV lesions with three thripsKent Evans, Assistant Professor and Plant Pathologist
K ill E i S iTypical IYSV lesions with three thrips
f di it i ibl i th t, g
D D t P f d V t bl S i li t Kaysville Experiment Station feeding sites visible in the center.Dan Drost, Professor and Vegetable Specialist Kaysville Experiment Station g, g pR b W d A i t P f f E i Wh t d l t t bli h d thi i d f tilit t t t li d A sticky trap and jar of soapyRuby Ward, Associate Professor of Economics Wheat and corn plots were established this spring and fertility treatments applied. A sticky trap and jar of soapy y , p p g y pp
water, used to monitor thrips.water, used to monitor thrips.
W t SARE G t $133 441 Morgan Reeder FarmWestern SARE Grant: $133,441 Morgan Reeder Farm$ ,A i f h j i l h i d d bAn important part of the project is to evaluate the practices adopted by grower- Potential Benefits:An important part of the project is to evaluate the practices adopted by grower
d h h d f i h i f h hPotential Benefits:
P i t f d i cooperator Morgan Reeder who has not sprayed for onion thrips for the past three Thi j d i h d d i l i i i ill h lPreparing to freeze dry onion cooperator Morgan Reeder, who has not sprayed for onion thrips for the past three This project and its outreach and educational activities will help growers:
p g ysamples for IYSV testing
Si i years Reeder’s practices include:This project and its outreach and educational activities will help growers:samples for IYSV testing.
Situation: years. Reeder s practices include:I kill i id tif i IYSV i th fi ldSituation:
A 50% d i i N i• Improve skills in identifying IYSV in the field
i ll i ( S ) d i h i h i bl fi bl • A 50% reduction in N inputp y g
B f lt ti d d h t f tIris yellow spot virus (IYSV) and onion thrips threaten sustainable, profitable A 50% reduction in N inputA h i
• Become more aware of alternative weed and crops hosts for pests Iris yellow spot virus (IYSV) and onion thrips threaten sustainable, profitable i d i i h d h i d • A corn versus wheat rotation
eco e o e awa e o a te at ve weed a d c ops osts o pestsd IYSVonion production in Utah and the Western United States • A corn versus wheat rotation and IYSVonion production in Utah and the Western United States.
• Use of ‘MoreLife’ as a bio-stimulantand IYSV
b h d f i d l i• Use of MoreLife as a bio stimulant • Learn about the need for integrated solutionsOnion growers in Utah rely on high risk insecticides for thrips management which Learn about the need for integrated solutionsOnion growers in Utah rely on high risk insecticides for thrips management, which To experimentally evaluate Reeder’s practices as well as determine the effects of Th li t d fi ld t i l ill i d t di f h l t t i thas increased insecticide use and may increase the severity of IYSV outbreaks To experimentally evaluate Reeder s practices as well as determine the effects of The replicated field trials will improve understanding of how plant nutrient has increased insecticide use and may increase the severity of IYSV outbreaks. p y pt th i d IYSV t li t d fi ld t i l ill b d t d i
p p g pi d i i h l i h itrap crops on thrips and IYSV, two replicated field trials will be conducted in status, crop rotations and trap crops interact with or alter onion thrips
Little is known about how to effectively manage IYSV – whether cultural practicesp p p , p
t d thstatus, crop rotations and trap crops interact with or alter onion thrips f di h bi d hi ill h l i d l i d iLittle is known about how to effectively manage IYSV whether cultural practices years two and three: feeding habits and movements This will help in developing production
affect its spread and whether more intensive thrips insecticide programs reduce itsy feeding habits and movements. This will help in developing production
affect its spread and whether more intensive thrips insecticide programs reduce its • Crop rotation and N management on 1 68 acres at the USU Kaysville strategies that minimize thrips predation and IYSV infection and spread
incidence or severity • Crop rotation and N management on 1.68 acres at the USU Kaysville strategies that minimize thrips predation and IYSV infection and spread.incidence or severity. p g y
Experiment Station I d i ill h l d N l hi hExperiment Station Improved nitrogen management will help reduce N leaching to theObjectives:
pEff ti f t ( t b k h t d l h li ) i l i
Improved nitrogen management will help reduce N leaching to the i d d d i i id illObjectives: • Effectiveness of trap crops (carrot, buckwheat and lacy phacelia) in luring environment, and reduced insecticide use will cut grower expenses.p p ( , y p ) g
th i f i R d ’ th Ut h fenvironment, and reduced insecticide use will cut grower expenses.
1 Work with local growers to determine onion thrips and IYSV pressure in thrips away from onions on Reeder’s northern Utah farm1. Work with local growers to determine onion thrips and IYSV pressure in t ps away o o o s o eede s o t e Uta aprimary Utah onion areas and correlate IYSV pressure to common farmprimary Utah onion areas and correlate IYSV pressure to common farm Educational Activities (planned)practices
Educational Activities (planned)practices
A di i l i ll f i l h h l h d• A digital image gallery of onion plant growth health and pest symptoms2 Determine the effects of crop and pest management strategies on thrips survival
• A digital image gallery of onion plant growth, health and pest symptoms2. Determine the effects of crop and pest management strategies on thrips survival • A web-based onion crop and pest advisoryp p g g p
and population sizes• A web based onion crop and pest advisory
and population sizes • Extension fact sheets and scientific papersp p • Extension fact sheets and scientific papers3 E al ate nitrogen (N) inp ts N leaching potential alternati e fertili ers trap3. Evaluate nitrogen (N) inputs, N leaching potential, alternative fertilizers, trap g ( ) p , g p , , p
d t ti th i IYSV i i ld d t litcrops and rotation on thrips, IYSV, onion yields and storage qualityp p , , y g q y
4 C d t k h d fi ld d t l ti f i th i4. Conduct grower workshops and field days on control options of onion thrips Sticky trap demonstration at a fieldg p y p pd IYSV
Sticky trap demonstration at a field dand IYSV day.
5 C d t i d t b fit l i f d h t5. Conduct economic and cost-benefit analysis of proposed changes to y p p gt f i th i d IYSVmanagement of onion thrips and IYSVmanagement of onion thrips and IYSV
6 Di i l h h i b ll i h I d j l d P j t i t d t6. Disseminate results through extension bulletins, the Internet, trade journals and Harvesting onions for grading and Sampling soil and plant tissue for N Project overview presented at summer 6. Disseminate results through extension bulletins, the Internet, trade journals and i ifi li
Harvesting onions for grading and storage trials
Sampling soil and plant tissue for N content field day August 12 2008scientific literature storage trials. content. field day August 12, 2008.scientific literature
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