Infection Overhaul 04 Paul E. Bertrand.


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Sickness UPDATE 04 Paul E. Bertrand. SPOTTED WILT. Culturing TRANSPLANTS ADMIRE ACTIGARD. Culturing. FIELD WEEDS. WHEAT (GRASSES) AS A TSWV SOURCE. WHEAT (GRASSES) AS A TSWV SOURCE. 1 . MOST THRIPS LEAVING WHEAT ARE CEREAL THRIPS WHICH DO NOT TRANSMIT TSWV .
Transcripts
Slide 1

Illness UPDATE 04 Paul E. Bertrand

Slide 2

SPOTTED WILT TILLAGE TRANSPLANTS ADMIRE ACTIGARD

Slide 3

TILLAGE FIELD WEEDS

Slide 4

WHEAT (GRASSES) AS A TSWV SOURCE

Slide 5

WHEAT (GRASSES) AS A TSWV SOURCE 1 . MOST THRIPS LEAVING WHEAT ARE CEREAL THRIPS WHICH DO NOT TRANSMIT TSWV .

Slide 6

WHEAT (GRASSES) AS A TSWV SOURCE 1 . MOST THRIPS LEAVING WHEAT ARE CEREAL THRIPS WHICH DO NOT TRANSMIT TSWV . 2 . WHEAT IS NOT A TSWV HOST .

Slide 7

TSWV ACQUIRED FOR TRANSMISSION ONLY BY JUVENILES and -

Slide 8

TSWV NECESSARY JUVENILE STAGE EXISTS ONLY 12 - 15 HRS . so -

Slide 9

TSWV TO TRANSMIT TSWV LATER THRIPS MUST HATCH ON OR NEAR INFECTED PLANTS

Slide 10

WHEAT (GRASSES) AS A TSWV SOURCE 1 . MOST THRIPS LEAVING WHEAT ARE CEREAL THRIPS WHICH DO NOT TRANSMIT TSWV . 2 . WHEAT IS NOT A TSWV HOST . 3 . TOBACCO THRIPS HATCHED ON WHEAT HAVE NO OPPORTUNITY TO ACQUIRE TSWV .

Slide 11

IN FIELD WEED MANAGEMENT

Slide 12

IN FIELD WEED MANAGEMENT CLEAN ROWS WEEDY ROWS WHEAT ROWS

Slide 14

IN FIELD WEED MANAGEMENT 2 ROW 4 ROW 8 ROW TOBACCO

Slide 16

2004 EARLY WEEDS SUMNER : 42/90 ELISA+ GRINER : 58/90 ELISA+

Slide 17

EFFECT OF COVER ON SPOTTED WILT NEXT TO COVER

Slide 18

EFFECT OF COVER ON SPOTTED WILT NEXT TO COVER

Slide 19

EFFECT OF COVER ON SPOTTED WILT NEXT TO COVER

Slide 20

WHEAT SUMNER : 0/90 ELISA+ GRINER : 0/90 ELISA+

Slide 21

REDISTRIBUTION OF ADULT THRIPS FROM WHEAT ?

Slide 22

SUMNER FARM % TSWV ROW FROM COVER

Slide 23

GRINER FARM % TSWV ROW FROM COVER

Slide 25

WHEAT (GRASSES) AS A TSWV SOURCE 1 . NOT A SOURCE but rather 2 . CAN PLAY A ROLE

Slide 26

TILLAGE STRIP TILL

Slide 27

2001 - 2003

Slide 28

RESULTS % TSWV however -

Slide 29

2004 LITTER LEFT STANDING

Slide 31

LAY BY LITTER CUT OUT 5 WEEKS POST TP

Slide 32

2004 RESULTS % TSWV

Slide 33

HOUSE PLANTS versus BED PLANTS

Slide 34

ARE THE PLANTS THEMSELVES DIFFERENT ?

Slide 35

HOUSE versus BED PLANTS 9 SOURCES OF PLANTS COLLECTED THE SAME DAY GROWN AT 2 LOCATIONS SET THE SAME DAY ADMIRE 2 . 0 oz/1 , 000 (TPW)

Slide 36

2003 PLANT TRIAL RESULTS

Slide 37

HOUSE 0 - 1 % INFECTED TRANSPLANTS 2/5 LOTS HAD ONE ELISA+ PLANT

Slide 38

HOUSE 0 - 1 % BED 0 % INFECTED TRANSPLANTS 2/5 LOTS HAD ONE ELISA+ PLANT

Slide 39

EFFECT OF PLANT SOURCE % TSWV

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EFFECT OF PLANT SOURCE % TSWV

Slide 41

EFFECT OF PLANT SOURCE % STAND

Slide 42

EFFECT OF PLANT SOURCE % STAND

Slide 43

EXPECTED RESULTS BETTER RESPONSE TO TPW ADMIRE WITH HOUSE PLANTS SOME STAND LOSS WITH BED PLANTS & TPW ADMIRE

Slide 44

UNEXPECTED RESULTS MORE INFECTED HOUSE PLANTS MORE TSWV WITH HOUSE PLANTS

Slide 45

2004 PLANT TRIAL RESULTS

Slide 46

EFFECT OF PLANT SOURCE % TSWV

Slide 47

EFFECT OF PLANT SOURCE % TSWV

Slide 48

EFFECT OF PLANT SOURCE % STAND

Slide 49

EFFECT OF PLANT SOURCE % STAND

Slide 50

2004 RESULTS SIMILAR TO 2003 MORE TSWV WITH HOUSE PLANTS BETTER RESPONSE TO TPW ADMIRE WITH HOUSE PLANTS SOME STAND LOSS WITH BED PLANTS & TPW ADMIRE

Slide 51

INFECTED TRANSPLANTS HOUSE 1 - 4 96

Slide 52

INFECTED TRANSPLANTS HOUSE 1 - 4 BED 0 - 6 96

Slide 53

2004 RESULTS SIMILAR TSWV INFECTION IN BED AND HOUSE PLANTS NO CORRELATION BETWEEN ELISA+ TRANSPLANTS AND : STAND LOSS EARLY TSWV FINAL TSWV

Slide 54

ADMIRE

Slide 55

FLOAT HOUSES ~ 65 % OF PLANTS ADMIRE DRENCH TRT . ~ 90 % SUCCESS

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PLANT BEDS ~ 30 % OF PLANTS ADMIRE TPW TRT . ~ 55 % SUCCESS

Slide 57

ADMIRE BOTH METHODS CONTROL LATER APHIDS

Slide 58

2004 APPLICATION OF PROVADO TO PLANT BEDS

Slide 59

2004 TRIALS (4)

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T-RAIL HOUSES ~ 5 % OF PLANTS ADMIRE DRENCH TRT . ~ 35 % SUCCESS

Slide 61

T-RAIL HOUSES IS IRRIGATION WASHING ADMIRE OUT OF TRAYS ?

Slide 62

2004 TRIALS (6) NOT MUCH TREATMENT DIFFERENCE

Slide 63

ACTIGARD : TRANSPLANT TREATMENT

Slide 64

ACTIGARD + ADMIRE

Slide 65

ACTIGARD TREATMENT (HOUSE PLANTS) 1 . 0 oz . /100 , 000 PLANTS SPRAY ON 7 - 14 DAYS PRE TP SET IN PRE WETTED BEDS

Slide 66

ACTIGARD : FIELD SPRAYS

Slide 67

2002 TRIALS (9)

Slide 68

2002 RESULTS FINAL % TSWV

Slide 69

2004 TRIALS (8)

Slide 70

2004 TRIALS (8)

Slide 71

2004 RESULTS FINAL % TSWV

Slide 72

ACTIGARD FIELD SPRAYS NOT CONSISTANT (FARM TO FARM) 1 SPRAY INCREASED TSWV 5 SPRAYS WORK BEST : 0 , 7 , 14 , 21 , 28 DAYS POST T P $125/Ac LAST 2 SPRAYS (21 & 28 DAYS) ?

Slide 73

BLACK SHANK

Slide 74

BLACK SHANK RACE 1 SITUATION

Slide 75

BLACK SHANK RACE 1 DISASTER

Slide 76

NEW RACE 0 RESISTANCE IS BASED ON A SINGLE GENE and -

Slide 77

ALL HIGH RESISTANCE VARIETIES HAVE THIS GENE NC-71 Sp G168 NC-72 Sp GH20 NC-297 and so on .

Slide 78

CONTINUOUS PLANTING THESE VARIETIES WILL SELECT RACE 1

Slide 79

BLACK SHANK RACE 1 MAINTAIN OR INCREASE ROTATION TIME and - ALTERNATE HIGH RES . WITH K-346

Slide 80

BLACK SHANK RACE 1 MAINTAIN OR INCREASE ROTATION TIME and - ALTERNATE HIGH RES . WITH K-346 and -

Slide 81

USE RIDOMIL

Slide 82

2001 BROOKS CO . Dark SHANK TRIAL % BLACK SHANK

Slide 83

2001 BROOKS CO . Dark SHANK TRIAL % BLACK SHANK

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