Plant Pathology Laboratory Tests and Services

More information for Phytosanitary Certification sampling, informational sampling and submission can be found on the Sampling and Shipping page.

Contact the lab about testing a non-listed pathogen.

Directions: Select appropriate crop in drop down box below to filter tests.

Crop

01-Alternaria radicina

Black rot of carrots

CROP

Carrot

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

2 - 4 weeks

COST

$55.00

SAMPLE SIZE

100 g (0.022 lb)/1,000 seeds

01-Bacterial Testing (Plant)

CROP

Plant Samples

ACCEPTABLE SEED

Untreated only

NOTES

Whole symptomatic plant is preferred.

If whole plant is unable to be sampled, samples should include healthy margins around symptomatic material.

TEST DURATION

4 - 8 weeks

COST

$75.00

SAMPLE SIZE

Plant tissue

01-Bacterial Testing (Seed)

CROP

Seed Samples

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 8 weeks

COST

$110.00

SAMPLE SIZE

Varies, contact lab

01-Barley Stripe Mosaic Virus ELISA

CROP

Grains (Wheat, Barley, Triticale)

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

1 - 2 weeks

COST

$75.00

SAMPLE SIZE

1,000 g (2 lbs)/1,000 seeds

01-Botrytis sp.

CROP

Allium sp.

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 6 weeks

COST

$55.00

SAMPLE SIZE

100 g (0.022 lb)/1,000 seeds

01-Clavibacter michiganensis pv. insidiosus

Bacterial wilt of alfalfa

CROP

Alfalfa

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

2 - 4 weeks

COST

$110.00

SAMPLE SIZE

500 g (0.1 lb)/6,000 seeds

01-Clavibacter michiganensis subsp michiganensis

Bacterial canker

CROP

Tomato/Pepper

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 8 weeks

COST

$110.00

SAMPLE SIZE

500 g (0.1 lb)/6,000 seeds

01-Clavibacter michiganensis subsp sepedonicus 400 Tubers PCR

Bacterial ring rot

CROP

Potato

ACCEPTABLE SEED

Untreated only

NOTES

Sprouting required

TEST DURATION

Variable

COST

$250.00

SAMPLE SIZE

400 tubers

01-Culture Identification – PCR

CROP

Third Party Testing

ACCEPTABLE SEED

N/A

NOTES

Validation testing

TEST DURATION

1 - 2 weeks

COST

$100.00

SAMPLE SIZE

Lab will provide

01-Curtobacterium flaccumfaciens

Bacterial wilt of beans

CROP

Bean (Phaseolus sp.),

Bean (Non-Phaseolus)

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 8 weeks

COST

$110.00

SAMPLE SIZE

<10 lb lot: negotiable
10-15 lb lot: 0.5 lbs
15-25 lb lot: 1.0 lbs
25-50 lb lot: 1.5 lbs
50-200 lb lot: 2.0 lbs
200-1,000 lb lot: 3.0 lbs
>1,000 lb lot: 5.0 lbs for every

10,000 lbs or portion thereof

01-Leptosphaeria maculans 1000 Seed Test (Syn Phoma lingam)

Black leg of brassicas

CROP

Brassicas

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

3 - 5 weeks

COST

$55.00

SAMPLE SIZE

100 g (0.022 lb)/1,000 seeds

01-Pantoea stewartii 400 Seed ELISA

Stewarts wilt

CROP

Corn

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

1 - 2 weeks

COST

$110.00

SAMPLE SIZE

5,000 g (10 lbs)/6,000 seeds

01-Pseudomonas syringae pv. pisi

Bacterial blight of peas

CROP

Pea

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 8 weeks

COST

$110.00

SAMPLE SIZE

5,000 g (10 lbs)/6,000 seeds

01-Xanthomonas campestris pv campestris

Black rot of brassicas

CROP

Crucifers

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 8 weeks

COST

$110.00

SAMPLE SIZE

500 g (0.1 lb)/6,000 seeds

02-Alternaria dauci

Leaf blight of carrots

CROP

Carrot

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

2 - 4 weeks

COST

$55.00

SAMPLE SIZE

100 g (0.022 lb)/1,000 seeds

02-Culture Identification – Sequencing

CROP

Third Party Testing

ACCEPTABLE SEED

N/A

NOTES

Validation testing

TEST DURATION

2 - 4 weeks

COST

$75.00

SAMPLE SIZE

Lab will provide

02-Fungal Testing (Plant)

CROP

Plant Samples

ACCEPTABLE SEED

Untreated only

NOTES

Whole symptomatic plant is preferred.

If whole plant is unable to be sampled, samples should include healthy margins around symptomatic material.

TEST DURATION

4 - 8 weeks

COST

$75.00

SAMPLE SIZE

Plant tissue

02-Fungal Testing (Seed)

CROP

Seed Samples

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 8 weeks

COST

$55.00

SAMPLE SIZE

Varies, contact lab

02-Fusarium sp. 400 Seed

CROP

Pea

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

3 - 5 weeks

COST

$55.00

SAMPLE SIZE

1,000 g (2 lbs)/1,000 seeds

02-High Plains Virus 400 Seed ELISA

CROP

Corn

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

1 - 2 weeks

COST

$75.00

SAMPLE SIZE

1,000 g (2 lbs)/1,000 seeds

02-Onion Yellow Dwarf Virus

CROP

Allium sp.

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 6 weeks

COST

$75.00

SAMPLE SIZE

500 g (0.1 lb)/6,000 seeds

02-Potato Leafroll Virus 400 Tubers ELISA

CROP

Potato

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

Variable

COST

$200.00

SAMPLE SIZE

400 tubers

02-Pseudomonas savastanoi pv. phaseolicola

Halo blight of beans

CROP

Bean (Phaseolus sp.),

Bean (Non-Phaseolus)

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 8 weeks

COST

$110.00

SAMPLE SIZE

<10 lb lot: negotiable
10-15 lb lot: 0.5 lbs
15-25 lb lot: 1.0 lbs
25-50 lb lot: 1.5 lbs
50-200 lb lot: 2.0 lbs
200-1,000 lb lot: 3.0 lbs
>1,000 lb lot: 5.0 lbs for every

10,000 lbs or portion thereof

02-Tilletia controversa

Common bunt

CROP

Grains (Wheat, Barley, Triticale)

ACCEPTABLE SEED

Treated or Untreated

NOTES

N/A

TEST DURATION

1 - 2 weeks

COST

$75.00

SAMPLE SIZE

1,000 g (2 lbs)/1,000 seeds

02-Xanthomonas alfalfae

Bacterial leaf spot of alfalfa

CROP

Alfalfa

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

2 - 4 weeks

COST

$110.00

SAMPLE SIZE

500 g (0.1 lb)/6,000 seeds

03-Maize Dwarf Mosaic Virus 400 Seed ELISA

CROP

Corn

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

1 - 2 weeks

COST

$75.00

SAMPLE SIZE

1,000 g (2 lbs)/1,000 seeds

03-Phoma sp.

CROP

Alfalfa

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

2 - 4 weeks

COST

$55.00

SAMPLE SIZE

100 g (0.022 lb)/1,000 seeds

03-Potato Virus A 400 Tubers ELISA

CROP

Potato

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

Variable

COST

$200.00

SAMPLE SIZE

400 tubers

03-Pseudomonas syringae pv. syringae

Brown spot

CROP

Bean (Phaseolus sp.),

Bean (Non-Phaseolus)

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 8 weeks

COST

$110.00

SAMPLE SIZE

<10 lb lot: negotiable
10-15 lb lot: 0.5 lbs
15-25 lb lot: 1.0 lbs
25-50 lb lot: 1.5 lbs
50-200 lb lot: 2.0 lbs
200-1,000 lb lot: 3.0 lbs
>1,000 lb lot: 5.0 lbs for every

10,000 lbs or portion thereof

03-Samples Sent to Iowa State

CROP

Third Party Testing

ACCEPTABLE SEED

N/A

NOTES

If testing is not available in the lab

TEST DURATION

2 - 4 weeks

COST

Varies

SAMPLE SIZE

Lab will provide

03-Tilletia indica

Karnal bunt

CROP

Grains (Wheat, Barley, Triticale)

ACCEPTABLE SEED

Treated or Untreated

NOTES

N/A

TEST DURATION

1 - 2 weeks

COST

$75.00

SAMPLE SIZE

1,000 g (2 lbs)/1,000 seeds

03-Viral Testing (Plant)

CROP

Plant Samples

ACCEPTABLE SEED

Untreated only

NOTES

Whole symptomatic plant is preferred.

If whole plant is unable to be sampled, samples should include healthy margins around symptomatic material.

TEST DURATION

3 - 4 weeks

COST

$75.00

SAMPLE SIZE

Plant tissue

03-Viral Testing (Seed)

CROP

Seed Samples

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

3 - 4 weeks

COST

$75.00

SAMPLE SIZE

Varies, contact lab

03-Xanthomonas hortorum pv. carotae

Bacterial leaf blight of carrots

CROP

Carrot

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 6 weeks

COST

$110.00

SAMPLE SIZE

500 g (0.1 lb)/6,000 seeds

04-Combined Testing (Plant)

CROP

Plant Samples

ACCEPTABLE SEED

Untreated only

NOTES

Whole symptomatic plant is preferred.

If whole plant is unable to be sampled, samples should include healthy margins around symptomatic material.

TEST DURATION

4 - 8 weeks

COST

$100.00

SAMPLE SIZE

Plant tissue

04-Combined Testing (Seed)

CROP

Seed Samples

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 8 weeks

COST

$100.00 to $150.00

SAMPLE SIZE

Varies, contact lab

04-Potato Virus Y 400 Tubers ELISA

CROP

Potato

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

Variable

COST

$200.00

SAMPLE SIZE

400 tubers

04-Sugarcane Mosaic Virus 400 Seed ELISA

CROP

Corn

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

1 - 2 weeks

COST

$75.00

SAMPLE SIZE

1,000 g (2 lbs)/1,000 seeds

04-Urocystis sp.

Flag smut

CROP

Grains (Wheat, Barley, Triticale)

ACCEPTABLE SEED

Treated or Untreated

NOTES

N/A

TEST DURATION

1 - 2 weeks

COST

$75.00

SAMPLE SIZE

1,000 g (2 lbs)/1,000 seeds

04-Verticillium sp.

CROP

Alfalfa

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

2 - 4 weeks

COST

$55.00

SAMPLE SIZE

100 g (0.022 lb)/1,000 seeds

04-Xanthomonas axonopodis pv. phaseoli

Common blight of beans

CROP

Bean (Phaseolus sp.),

Bean (Non-Phaseolus)

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 8 weeks

COST

$110.00

SAMPLE SIZE

<10 lb lot: negotiable
10-15 lb lot: 0.5 lbs
15-25 lb lot: 1.0 lbs
25-50 lb lot: 1.5 lbs
50-200 lb lot: 2.0 lbs
200-1,000 lb lot: 3.0 lbs
>1,000 lb lot: 5.0 lbs for every

10,000 lbs or portion thereof

05-IDAPA 02.06.39 “Year Out” Planting

Includes Potato Virus Y 400 Tubers ELISA, Potato Virus A 400 Tubers ELISA, Clavibacter michiganensis subsp sepedonicus 400 PCR, and Potato Leafroll Virus 400 Tubers ELISA

CROP

Potato

ACCEPTABLE SEED

Untreated only

NOTES

Sprouting required

TEST DURATION

Variable

COST

$850.00

SAMPLE SIZE

800 tubers

05-Wheat Streak Mosaic Virus 400 Seed ELISA

CROP

Corn

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

1 - 2 weeks

COST

$75.00

SAMPLE SIZE

1,000 g (2 lbs)/1,000 seeds

05-Xanthomonas fuscans pv. fuscans

Fuscous blight of beans

CROP

Bean (Phaseolus sp.),

Bean (Non-Phaseolus)

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 8 weeks

COST

$110.00

SAMPLE SIZE

<10 lb lot: negotiable
10-15 lb lot: 0.5 lbs
15-25 lb lot: 1.0 lbs
25-50 lb lot: 1.5 lbs
50-200 lb lot: 2.0 lbs
200-1,000 lb lot: 3.0 lbs
>1,000 lb lot: 5.0 lbs for every

10,000 lbs or portion thereof

06-Combined Bacteria Test

Includes Pseudomonas syringae pv. syringae, Pseudomonas savastanoi pv. phaseolicola, Xanthomonas axonopodis pv. phaseoli, Xanthomonas fuscans pv. fuscans, and Curtobacterium flaccumfaciens

CROP

Bean (Phaseolus sp.),

Bean (Non-Phaseolus)

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 8 weeks

COST

$115.00

SAMPLE SIZE

<10 lb lot: negotiable
10-15 lb lot: 0.5 lbs
15-25 lb lot: 1.0 lbs
25-50 lb lot: 1.5 lbs
50-200 lb lot: 2.0 lbs
200-1,000 lb lot: 3.0 lbs
>1,000 lb lot: 5.0 lbs for every

10,000 lbs or portion thereof

07-Colletotrichum lindemuthianum

Anthracnose of beans

CROP

Bean (Non-Phaseolus),

Bean (Phaseolus sp.)

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 8 weeks

COST

$65.00 (Non-Phaseolus)

$60.00 (Phaseolus sp.)

SAMPLE SIZE

<10 lb lot: negotiable
10-15 lb lot: 0.5 lbs
15-25 lb lot: 1.0 lbs
25-50 lb lot: 1.5 lbs
50-200 lb lot: 2.0 lbs
200-1,000 lb lot: 3.0 lbs
>1,000 lb lot: 5.0 lbs for every

10,000 lbs or portion thereof

08-IDAPA 02.06.06 Plant in Idaho Test (Bean Serology)

Includes Combined Bacteria Test and Colletotrichum lindemuthianum

CROP

Bean (Phaseolus sp.)

ACCEPTABLE SEED

Untreated only

NOTES

Must be officially sampled: call

208-332-8629 (Treasure Valley) or

208-736-3032 (Magic Valley) to schedule

TEST DURATION

4 - 8 weeks

COST

$175.00

SAMPLE SIZE

<10 lb lot: negotiable
10-15 lb lot: 0.5 lbs
15-25 lb lot: 1.0 lbs
25-50 lb lot: 1.5 lbs
50-200 lb lot: 2.0 lbs
200-1,000 lb lot: 3.0 lbs
>1,000 lb lot: 5.0 lbs for every

10,000 lbs or portion thereof

08-Phakopsora pachyrhizi

Soybean rust

CROP

Bean (Non-Phaseolus)

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

4 - 8 weeks

COST

$75.00

SAMPLE SIZE

<10 lb lot: negotiable
10-15 lb lot: 0.5 lbs
15-25 lb lot: 1.0 lbs
25-50 lb lot: 1.5 lbs
50-200 lb lot: 2.0 lbs
200-1,000 lb lot: 3.0 lbs
>1,000 lb lot: 5.0 lbs for every

10,000 lbs or portion thereof

09-IDAPA 02.06.25 Plant in Idaho Test (Bean Serology)

Includes Combined Bacteria Test, plus Colletotrichum lindemuthianum, Phakopsora pachyrhizi

CROP

Bean (Non-Phaseolus)

ACCEPTABLE SEED

Untreated only

NOTES

Must be officially sampled: call

208-332-8629 (Treasure Valley) or

208-736-3032 (Magic Valley) to schedule

Soil tested by Idaho State Seed Lab

TEST DURATION

4 - 8 weeks

COST

$250.00

SAMPLE SIZE

<10 lb lot: negotiable
10-15 lb lot: 0.5 lbs
15-25 lb lot: 1.0 lbs
25-50 lb lot: 1.5 lbs
50-200 lb lot: 2.0 lbs
200-1,000 lb lot: 3.0 lbs
>1,000 lb lot: 5.0 lbs for every

10,000 lbs or portion thereof

09-Isariopsis griseola

Angular leaf spot of beans

CROP

Bean (Phaseolus sp.)

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

2 - 4 weeks

COST

$55.00

SAMPLE SIZE

<10 lb lot: negotiable
10-15 lb lot: 0.5 lbs
15-25 lb lot: 1.0 lbs
25-50 lb lot: 1.5 lbs
50-200 lb lot: 2.0 lbs
200-1,000 lb lot: 3.0 lbs
>1,000 lb lot: 5.0 lbs for every

10,000 lbs or portion thereof

10-Bean Common Mosaic Virus (BCMV) ELISA

CROP

Bean (Phaseolus sp.)

ACCEPTABLE SEED

Untreated only

NOTES

Grow out

TEST DURATION

6-8 weeks

COST

$300.00

SAMPLE SIZE

1,000 g (2 lbs)/1,000 seeds

11-Fusarium sp.

CROP

Bean (Phaseolus sp.)

ACCEPTABLE SEED

Untreated only

NOTES

N/A

TEST DURATION

2 - 4 weeks

COST

$55.00

SAMPLE SIZE

1,000 g (2 lbs)/1,000 seeds