June 24, 2017

Brian Nault – NY State Commentary – Onion ipmPIPE

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2013 -NY Report – June 6th

Onion ipmPIPE website regional report

 

New York State Report  – June 6, 2013

 

Onion Crop Growth Stage and Status:

Onion crop look good this spring.  Many of the direct-seeded onions are in the two to three leaf stage, while transplants have 4 to 9 leaves.

 

Weather impacts (temperature, rain, hail, freezing):

Weather has been normal for this time of year in New York.  Some days are hot and reach into the mid to upper 80s, while others may only reach the upper 50s and low 60s.  There have been plenty of rainfall events and rainfall has been above average in most locations across most regions in the State.

 

Insect Scouting, Outlook and Management: 

Maggots:  untreated, direct-seeded onions are showing signs of onion maggot damage; untreated transplanted onions are not.  FarMore FI500 and CAPS seed treatment packages are performing well on their own at this point.

Thrips:  adult onion thrips are beginning to infest onion fields, but densities are extremely low, even on transplanted onions.  Immature onion thrips larvae are virtually absent on onion plants in commercial production areas; however, more thrips have been observed in smaller plantings of onions not grown on muck soils.

 

Disease Scouting, Outlook and Management: 

Iris yellow spot virus:  none

Soil-borne Diseases (Damping-off, pink root, Fusarium basal rot):  none

Fungal Diseases (purple blotch, downy mildew, Botrytis leaf blight): Botrytis leaf blight has exploded in New York almost overnight.  Most fields are above threshold and growers will begin applying fungicides.

Bacterial Diseases (Xanthomonas, center rot, soft rots):  none

 

New York State report filed by:

Brian A. Nault, Dept. of Entomology, Cornell University

Email:  ban6@cornell.edu

Phone:  315-787-2354

 

Comments by others in New York State included in this report:

Christy Hoepting, Cornell Cooperative Extension, Albion, NY

Email:  cah59@cornell.edu

 

Brian Nault – NY State Commentary – Onion ipmPIPE

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2013 -NY Report – May 13th

Onion ipmPIPE website regional report

 

New York State Report  – May 13, 2013

 

Onion Crop Growth Stage and Status:

Nearly all of the onions have been planted and the crop has established well this spring.  Many of the direct-seeded onions are in the flag leaf stage.

 

Weather impacts (temperature, rain, hail, freezing):

Dry and warm until a few days ago when temperatures have been below normal.  There is a frost warning for half of the onion production region in the state.  Rainfall has been average.

 

Insect Scouting, Outlook and Management: 

Maggots:  no survey or reports at this time

Thrips:  no survey or reports on crop at this time; western flower thrips have been confirmed on transplants imported from Arizona.

 

Disease Scouting, Outlook and Management: 

Iris yellow spot virus:  no survey or reports at this time

Soil-borne Diseases (Damping-off, pink root, Fusarium basal rot):  no survey or reports at this time

Fungal Diseases (purple blotch, downy mildew, Botrytis leaf blight): no survey or reports at this time

Bacterial Diseases (Xanthomonas, center rot, soft rots):  no survey or reports at this time

New York State report filed by:

Brian A. Nault, Dept. of Entomology, Cornell University

Email:  ban6@cornell.edu

Phone:  315-787-2354

 

Comments by others in New York State included in this report:

Christy Hoepting, Cornell Cooperative Extension, Albion, NY

Email:  cah59@cornell.edu

 

Brian Nault – NY State Commentary – Onion ipmPIPE

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2013 -NY Report – May 6th

Onion ipmPIPE website regional report

 

New York State Report  – May 6, 2013

 

Onion Crop Growth Stage and Status:

After a cool and wet spring, conditions have turned warm and dry.  A majority of the onion acreage has been planted given the long period of dry weather.  Overall, onion acreage should be similar to what was planted last season, around 10,000 acres.

Transplanting continues.  Direct-seeded onions have not emerged in most fields.

 

Weather impacts (temperature, rain, hail, freezing):

Dry and warm.

 

Insect Scouting, Outlook and Management: 

Maggots:  no survey or reports at this time

Thrips:  no survey or reports on crop at this time;  western flower thrips have been confirmed on transplants imported from Arizona.

 

Disease Scouting, Outlook and Management: 

Iris yellow spot virus:  no survey or reports at this time

Soil-borne Diseases (Damping-off, pink root, Fusarium basal rot):  no survey or reports at this time

Fungal Diseases (purple blotch, downy mildew, Botrytis leaf blight): no survey or reports at this time

Bacterial Diseases (Xanthomonas, center rot, soft rots):  no survey or reports at this time

New York State report filed by:

Brian A. Nault, Dept. of Entomology, Cornell University

Email:  ban6@cornell.edu

Phone:  315-787-2354

 

Comments by others in New York State included in this report:

Christy Hoepting, Cornell Cooperative Extension, Albion, NY

Email:  cah59@cornell.edu

 

Brian Nault – NY State Commentary – Onion ipmPIPE

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2012 -NY Report – September 10

 

Onion ipmPIPE website regional report

 

New York State Report  – September 10, 2012

 

Onion Crop Growth Stage and Status:

Fields continue to be harvested and in most cases yields are 25% or more lower than average; quality continues to be excellent.

 

Weather impacts (temperature, rain, hail, freezing):

We have had some rain, but not enough to impact harvesting; temperatures have been normal.

 

Insect Scouting, Outlook and Management: 

Maggots:  None observed from third generation.

Thrips:  Thrips pressure is low because most onion fields have either been harvested or have been windrowed and are waiting to be harvested.

 

Disease Scouting, Outlook and Management: 

Iris yellow spot virus:  IYSV was observed shortly before crop maturation in many fields, especially along edges.  The shorter than anticipated period that onions grew this year likely truncated the spread of IYSV within and among onion fields.  Consequently, the incidence of IYSV in New York onion fields was considered mild this season.

Soil-borne Diseases (Damping-off, pink root, Fusarium basal rot):  none reported

Fungal Diseases (purple blotch, downy mildew, Botrytis leaf blight):  Fungal diseases are low because most onion foliage has dried down.

Bacterial Diseases (Xanthomonas, center rot, soft rots):  Present at low levels in some fields.

 

 

New York State report filed by:

Brian A. Nault, Dept. of Entomology, Cornell University

Email:  ban6@cornell.edu

Phone:  315-787-2354

 

Comments by others in New York State included in this report:

Christy Hoepting, Cornell Cooperative Extension, Albion, NY

Email:  cah59@cornell.edu

 

Brian Nault – NY State Commentary – Onion ipmPIPE

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2012 -NY Report – August 24

Onion ipmPIPE website regional report

 

New York State Report  – August 24, 2012

 

Onion Crop Growth Stage and Status:

Most onions have matured two to three weeks earlier than normal and all leaves are down.  Fields continue to be harvested and in most cases bulb size has been smaller than desired, but quality continues to be excellent.

 

Weather impacts (temperature, rain, hail, freezing):

Still drier than normal, but temperatures have been normal.

 

Insect Scouting, Outlook and Management: 

Maggots:  None observed from third generation.

Thrips:  Thrips pressure is high only in the few fields that are not yet mature.  The dry and hot growing season was the perfect recipe for a bad year for thrips.  Despite this challenge, most growers were successful in managing thrips with the available insecticides and IRM guidelines for using them.

 

Disease Scouting, Outlook and Management: 

Iris yellow spot virus:  Yes, IYSV was observed along field edges before crop maturation.  The shorter than anticipated growth of the onion crop truncated the spread of IYSV within and among onion fields.  Consequently, the incidence of IYSV in New York onion fields was considered mild this season.

Soil-borne Diseases (Damping-off, pink root, Fusarium basal rot):  none reported

Fungal Diseases (purple blotch, downy mildew, Botrytis leaf blight):  Botrytis leaf blight (BLB) is uncommon, while purple blotch incidence is moderate to high in spots.  Downy mildew is not present.  Growers are using Bravo and Scala for disease control.

Bacterial Diseases (Xanthomonas, center rot, soft rots):  Present at low levels in some fields.

 

 

New York State report filed by:

Brian A. Nault, Dept. of Entomology, Cornell University

Email:  ban6@cornell.edu

Phone:  315-787-2354

 

Comments by others in New York State included in this report:

Christy Hoepting, Cornell Cooperative Extension, Albion, NY

Email:  cah59@cornell.edu

 

Brian Nault – NY State Commentary – Onion ipmPIPE

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2012 -NY Report – August 8

 

Onion ipmPIPE website regional report

 

New York State Report  – August 8, 2012

 

Onion Crop Growth Stage and Status:

Onions continue to mature earlier than normal, presumably a consequence of the drought and high temperatures during June and July.  Early-maturing varieties continue to be harvested.  Bulb size has been smaller than normal, but quality has been excellent.

 

Weather impacts (temperature, rain, hail, freezing):

Still drier than usual, but some locations have received some rain within the past week or so.  Temperatures have been normal.

 

Insect Scouting, Outlook and Management: 

Maggots:  None observed from third generation.

Thrips:  Thrips pressure continues to be high in spots, especially in fields near those that have matured and are harvested.  Most growers have sprayed 5 to 6 times, mostly with Movento, AgriMek, Lannate and some with Radiant.  Movento and Radiant have worked very well.  AgriMek and Lannate have done well when pressure is low to moderate, but not done as well under high pressure.

 

Disease Scouting, Outlook and Management: 

Iris yellow spot virus:  Yes, within the past week to 10 days.  Fields are beginning to show mild symptoms of IYSV, especially along edges.

Soil-borne Diseases (Damping-off, pink root, Fusarium basal rot):  none reported

Fungal Diseases (purple blotch, downy mildew, Botrytis leaf blight):  Botrytis leaf blight (BLB) is not common;  purple blotch incidence is low and downy mildew not present.  Growers are using Bravo and Scala for disease control.

Bacterial Diseases (Xanthomonas, center rot, soft rots):  Present at very low levels in some fields.

 

 

New York State report filed by:

Brian A. Nault, Dept. of Entomology, Cornell University

Email:  ban6@cornell.edu

Phone:  315-787-2354

 

Comments by others in New York State included in this report:

Christy Hoepting, Cornell Cooperative Extension, Albion, NY

Email:  cah59@cornell.edu

 

Brian Nault – NY State Commentary – Onion ipmPIPE

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2012 -NY Report – July 30

Onion ipmPIPE website regional report

 

New York State Report  – July 30, 2012

 

Onion Crop Growth Stage and Status:

Onions are still very dry in most locations and many have started maturing earlier than normal, presumably because of drought and high temperatures.  Most onion acreage is not irrigated. Some early varieties have been harvested.  Quality has been very good, but size is a bit smaller than expected.

 

Weather impacts (temperature, rain, hail, freezing):

Still on the dry side.  Temperatures have been near normal, but rainfall continues to be several inches below normal.

 

Insect Scouting, Outlook and Management: 

Maggots:  None observed from second generation.

Thrips:  Thrips pressure is still relatively high.  Most growers have sprayed 4 to 6 times, mostly with Movento, AgriMek, Lannate and some Radiant.  Movento and Radiant have worked very well, whereas AgriMek and Lannate have not done well under high pressure.

 

Disease Scouting, Outlook and Management: 

Iris yellow spot virus:  none observed

Soil-borne Diseases (Damping-off, pink root, Fusarium basal rot):  none reported

Fungal Diseases (purple blotch, downy mildew, Botrytis leaf blight):  Botrytis leaf blight (BLB) incidence is low.  Other fungal diseases are not common yet.

 

Bacterial Diseases (Xanthomonas, center rot, soft rots):  uncommon

New York State report filed by:

Brian A. Nault, Dept. of Entomology, Cornell University

Email:  ban6@cornell.edu

Phone:  315-787-2354

 

Comments by others in New York State included in this report:

Christy Hoepting, Cornell Cooperative Extension, Albion, NY

Email:  cah59@cornell.edu

 

Brian Nault – NY State Commentary – Onion ipmPIPE

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2012 -NY Report – July 19

Onion ipmPIPE website regional report

 

New York State Report  – July 19, 2012

 

Onion Crop Growth Stage and Status:

Onions are very dry and growing slowly.  Some have started maturing earlier than normal, presumably because of the drought and high temperatures.  Many onion acres are not irrigated. Some early varieties have been harvested.  Quality is excellent, but size is a bit smaller than expected.

 

Weather impacts (temperature, rain, hail, freezing):

Hot and dry.  Over the past several weeks, temperatures have been higher than average and rainfall several inches below normal.

 

Insect Scouting, Outlook and Management: 

Maggots:  None observed from second generation.

Thrips:  Thrips pressure is very high.  Most growers have sprayed 2 to 4 times already, mostly with Movento and AgriMek.  Movento worked very well and AgriMek should hold populations from exploding.

 

Disease Scouting, Outlook and Management: 

Iris yellow spot virus:  none observed

Soil-borne Diseases (Damping-off, pink root, Fusarium basal rot):  none reported

Fungal Diseases (purple blotch, downy mildew, Botrytis leaf blight):  Botrytis leaf blight (BLB) incidence is way down.  Other fungal diseases are not common.

 

Bacterial Diseases (Xanthomonas, center rot, soft rots):  uncommon

New York State report filed by:

Brian A. Nault, Dept. of Entomology, Cornell University

Email:  ban6@cornell.edu

Phone:  315-787-2354

 

Comments by others in New York State included in this report:

Christy Hoepting, Cornell Cooperative Extension, Albion, NY

Email:  cah59@cornell.edu

 

Brian Nault – NY State Commentary – Onion ipmPIPE

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2012 -NY Report – July 4

Onion ipmPIPE website regional report

 

New York State Report  – July 4, 2012

 

Onion Crop Growth Stage and Status:

Onions are growing well, but could use some water.  Early-planted onions have 10 to 11 leaves, while late-planted ones have 4 to 8 leaves.

 

Weather impacts (temperature, rain, hail, freezing):

Hot and dry.  Over the past couple of weeks, temperatures have been above normal and precipitation much below normal.

 

Insect Scouting, Outlook and Management: 

Maggots:  First-generation onion maggot damage is over.  No evidence of second-generation damage at this time.

Thrips:  All onion fields are infested with onion thrips.  All growers have been applying insecticides to manage infestations and control has been effective.  Most growers have applied Movento for their first 2 sprays.  Inclusion of a penetrating surfactant with Movento has been very important.  Also, many growers avoided tank mixing clorothalonil with Movento.  A few other growers have followed the applications of Movento with either Agri-Mek or Lannate.

 

Disease Scouting, Outlook and Management: 

Iris yellow spot virus:  none observed

Soil-borne Diseases (Damping-off, pink root, Fusarium basal rot):  none reported

Fungal Diseases (purple blotch, downy mildew, Botrytis leaf blight):  Botrytis leaf blight (BLB) is still common, but incidence has dropped considerably with the dry weather.  Very little incidence of other fungal pathogens at this time.

 

Bacterial Diseases (Xanthomonas, center rot, soft rots):  Almost non-existent at this point.

 

 

 

New York State report filed by:

Brian A. Nault, Dept. of Entomology, Cornell University

Email:  ban6@cornell.edu

Phone:  315-787-2354

 

Comments by others in New York State included in this report:

Christy Hoepting, Cornell Cooperative Extension, Albion, NY

Email:  cah59@cornell.edu

 

Brian Nault – NY State Commentary – Onion ipmPIPE

onion-clean-FD-lg

2012 -NY Report – June 18

Onion ipmPIPE website regional report

 

New York State Report  – June 18, 2012

 

Onion Crop Growth Stage and Status:

Onions are growing well.  Some transplanted onions have 10 to 11 leaves.  Direct-seeded onion fields range from 2 to 6 leaves.

 

Weather impacts (temperature, rain, hail, freezing):

Moderate.  Over the past couple of weeks, temperatures have been relatively normal.  Similarly, rainfall has been somewhat normal.

 

Insect Scouting, Outlook and Management: 

Maggots:  Onion maggot damage is subsiding in most places as we near the end of the first generation – 2 weeks earlier than normal.

Thrips:  Adults can be readily found in transplanted fields, while few adults have been observed in direct-seeded fields.  Some transplanted fields received their first spray last week.

 

Disease Scouting, Outlook and Management: 

Iris yellow spot virus:  none observed

Soil-borne Diseases (Damping-off, pink root, Fusarium basal rot):  none reported

Fungal Diseases (purple blotch, downy mildew, Botrytis leaf blight):  Botrytis leaf blight (BLB) is common with anywhere from less than one to over 20 lesions per leaf.  Growers have continued using foliar applications of fungicides for BLB control in Upstate NY.

 

 

Bacterial Diseases (Xanthomonas, center rot, soft rots):  none

New York State report filed by:

Brian A. Nault, Dept. of Entomology, Cornell University

Email:  ban6@cornell.edu

Phone:  315-787-2354

 

Comments by others in New York State included in this report:

Christy Hoepting, Cornell Cooperative Extension, Albion, NY

Email:  cah59@cornell.edu