Landscape Management to Reduce Tarnished Plant Bugs in Cotton Jeff - - PowerPoint PPT Presentation

▶
landscape management to reduce
SMART_READER_LITE
LIVE PREVIEW

Landscape Management to Reduce Tarnished Plant Bugs in Cotton Jeff - - PowerPoint PPT Presentation

Dec 05, 2022 27 likes •333 views

Landscape Management to Reduce Tarnished Plant Bugs in Cotton Jeff Gore MSU, DREC Gordon Snodgrass, Craig Abel, and O.P. Perera USDA-ARS Seasonal Occurrence of Plant Bugs Cultivated Hosts Reproductive Diapause Break Diapause Wild Hosts

slide-1
SLIDE 1

Jeff Gore

MSU, DREC Gordon Snodgrass, Craig Abel, and O.P. Perera USDA-ARS

Landscape Management to Reduce Tarnished Plant Bugs in Cotton

slide-2
SLIDE 2

Seasonal Occurrence of Plant Bugs Winter Spring Summer Fall

Dec.-Feb. Feb.-May June-Sept. Sept.-Dec.

Reproductive Diapause Break Diapause Wild Hosts

Wild Hosts Cultivated Hosts

Wild Hosts Enter Diapause Wild Hosts

Burndown Planting Squaring Flowering Harvest

slide-3
SLIDE 3

Week 2 Week 3 Week 4 Week 1

Distribution of Tarnished Plant Bugs in the Landscape - May

High Medium Low

slide-4
SLIDE 4

Week 1 Week 2 Week 3 Week 4

Distribution of Tarnished Plant Bugs in the Landscape - June

High Medium Low

slide-5
SLIDE 5

Distribution of Tarnished Plant Bugs in the Landscape - July

Week 1 Week 2 Week 3 Week 4 High Medium Low

slide-6
SLIDE 6

Gene Flow Between Populations 2006

O.P. Perera, USDA-ARS

0.62, 2.83, 5.72 Key: May, July, September 0.53, 5.45, 8.43

slide-7
SLIDE 7

Tunica/Robinsonville Clarksdale Leland/Stoneville Rolling Fork/Cary Vicksburg

  • St. Joseph, LA

2007-2008

slide-8
SLIDE 8

Late Winter and Early Spring Winter Spring

Dec.-Feb. Feb.-May

Reproductive Diapause Break Diapause Wild Hosts

Wild Hosts Cultivated Hosts

Wild Hosts Enter Diapause Wild Hosts

Burndown Planting Squaring Flowering Harvest

slide-9
SLIDE 9

Examples of early-spring broadleaf hosts of tarnished plant bug

Buttercup Evening Primrose Butterweed Annual Fleabane Sourdock Vetch Crimson Clover Cutleaf Primrose

slide-10
SLIDE 10

Area-wide Plant Bug Management

Gordon Snodgrass, William Scott, and Craig Abel – USDA-ARS

One herbicide application from late-Feb. through March.

slide-11
SLIDE 11

Area-Wide Plant Bug Control MS Delta

1 2 3 4 5 6 1 2 3 4 1 2 3 4

Treated Untreated

Week in June

  • No. per 100 sweeps

Week in July

slide-12
SLIDE 12
  • No. Plant Bug Applications

0.9 3.1 5.5 3.2 1.7 3.8 7 4.2 1 2 3 4 5 6 7 8 1999 2000 2001 Average Treated Untreated

Average

slide-13
SLIDE 13

Economic Benefit

$6.46 $7.81 $3.44 $5.90

1 2 3 4 5 6 7 8 9 1999 2000 2001 Average

Dollars per Acre

slide-14
SLIDE 14

Area-Wide Plant Bug Control MS Hills

0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 6/6 6/13 6/20 6/27 7/4 7/11 7/18 7/25

Treated Untreated

Sample Date

  • No. per 100 sweeps
slide-15
SLIDE 15

Untreated Treated

slide-16
SLIDE 16

Treated with Roundup at Burndown

slide-17
SLIDE 17

Summer (Crop Season) Summer

June-Sept.

Reproductive Diapause Break Diapause Wild Hosts

Wild Hosts Cultivated Hosts

Wild Hosts Enter Diapause Wild Hosts

Burndown Planting Squaring Flowering Harvest

slide-18
SLIDE 18
slide-19
SLIDE 19
slide-20
SLIDE 20
slide-21
SLIDE 21
slide-22
SLIDE 22

Regional Temik Side-Dress Study

Missouri – Kelly Tindall Arkansas – Gus Lorenz, Glen Studebaker, and Scott Akin Tennessee – Scott Stewart Mississippi – Jeff Gore, Angus Catchot, Don Cook, and Fred Musser Louisiana – Ralph Bagwell and Roger Leonard

slide-23
SLIDE 23

Temik Side Band Applications

3.9 11.9 9.8 2 4.8 8.8 4.1 2.3 6.8 2 4 6 8 10 12 14 5 DAT 10 DAT 20 DAT

Non-treated Temik 5 lbs. Temik 8 lbs.

  • No. Nymphs per 6 row ft.

60-80% 10-31%

slide-24
SLIDE 24

Fall - Winter (Reproductive Diapause) Winter Fall

Dec.-Feb. Sept.-Dec.

Reproductive Diapause Break Diapause Wild Hosts

Wild Hosts Cultivated Hosts

Wild Hosts Enter Diapause Wild Hosts

Burndown Planting Squaring Flowering Harvest

slide-25
SLIDE 25

Overwintering Habitats

  • Winter Annuals

– Mostly henbit,

Lamium amplexicaule

  • Plant Debris
slide-26
SLIDE 26

Percentages of Reproductive Females with Mature Eggs (2002-04) – G. Snodgrass

Month December January Wk 1 2 3 4 1 2 3 4 Henbit 30 59 75 62 75 95 100 96 Plant Debris 6 35 85 87 95 Mustard

  • 27

93 83 92 % with Mature Eggs

slide-27
SLIDE 27

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Butterweed Daisy Fleabane Shepherdspurse Buttercup Sour Dock Henbit

Occurrence of Nymphs on Winter and Spring Hosts

  • G. Snodgrass, 1999-2001

Jan. Feb. Mar. Apr.

slide-28
SLIDE 28

Summary and Conclusions

  • Host management during the early spring can

provide an economic benefit.

  • Crop arrangement and border management

from planting through summer.

  • Fall and winter management has not been

investigated, and may provide some good

  • pportunities.
slide-29
SLIDE 29

Summary and Conclusions

  • Tarnished plant bugs feed and reproduce on
  • ver 350 plant species which makes it a difficult

challenge.

  • Because of that, management from a landscape

perspective using an integrated approach will yield the greatest success.

slide-30
SLIDE 30