Fungicides Trials Blue mold did not occur in test plots and incidence in the Kentucky was very low. Black shank was the worst it had been in three years.

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Presentation transcript:

Fungicides Trials Blue mold did not occur in test plots and incidence in the Kentucky was very low. Black shank was the worst it had been in three years. Drought stress added to the problem by reducing the uptake of Ridomil or Ultra-flourish and by adding stress to black shank resistant varieties. Target Spot continues to increase and was present in our blue mold trials providing an opportunity to compare treatments for control of Target Spot. Quadris applied late gave the best control of Target Spot.

Black Shank Trials in Harrison Co. Kenneth Whitaker Farm TreatmentRate ActualTiming 1Check-- 2Ridomil Gold16 fl ozppi Ridomil Gold16 fl oz1st cult Ridomil Gold16 fl oz2nd cult 3Ridomil Gold16 fl ozppi Experimental18.6 fl oz1st cult Ridomil Gold16 fl oz2nd cult 4Experimental18.6 fl ozppi Ridomil Gold16 fl oz1st cult Experimental18.6 fl oz2nd cult 5 Ridomil Gold + Experimental 16 fl ozPpi 18.6 fl oz Ridomil Gold16 fl oz2nd cult 6 Ridomil Gold+ Experimental 16 fl ozppi 18.6 fl oz Experimental18.6 fl oz2nd cult 7 Ridomil Gold + Experimental 16 ozppi 18.6 fl oz Ridomil Gold + Experimental 16 oz 18.6 fl oz 2nd cult

Black Shank Fungicide Trial Harrison Co. – Kenneth Whitaker Farm Exp = Experimental, See previous slide for data sheet containing details of application timing and rate

Black Shank Fungicide Trial Harrison Co. – Kenneth Whitaker Farm

Black Shank Fungicide Trial Harrison Co. – Glenn Ishmael Farm

Blue Mold Treatments TreatmentRate ActualTimingINTtrtcoverage 1Check--- 2Acrobat MZ2.5 lb/100galonset10d3full 3Quadris8 fl oz/aonset10d3full 4Quadris8 fl oz/aonset10d3overtop 5Quadris12 fl oz/aonset10d3full 6Quadris8 fl oz/aonset 1full Actigard 50 WG0.5 fl oz/a18in10d2overtop 7Quadris8 fl oz/aonsetalternate2full Actigard 50 WG0.5 fl oz/a18inalternate1overtop 8Actigard 50 WG0.5 fl oz/a18in10d3overtop 9ExpLowonset10d3overtop 10ExpHighonset10d3overtop 11Exp + SurfixLow +.06 v/vonset10d3overtop

Effect of Fungicide Treatment on Vigor & Firing Jackson Co. – Dale Angel Farm

Effect of Fungicide Treatment on Target Spot Jackson Co. – Dale Angel Farm

Effect of Fungicide Treatment on Yield Jackson Co. – Dale Angel Farm

Effect of Fungicide Treatment on Vigor & Firing Jessamine Co. – Carl Waits Farm

Effect of Fungicide Treatment on Target Spot Jessamine Co. – Carl Waits Farm

Effect of Fungicide Treatment on Yield Jessamine Co. – Carl Waits Farm

The Effects on Ridomil in the Absence of Black Shank on Burley Yield Madison Co. - Don Long Farm

* *=significantly different 0.05

Insecticide Trials Weather may have influenced insect numbers in Aphid pressure was moderate while late season hornworms were more prominent than usual.

Effects of Transplant Treatment on Burley Vigor - Boyle Co., Allen Goggin Farm Plat=Platinum, Ad=Admire, Orth=Orthene

Effects of Transplant Treatment on Burley Yield- Boyle Co., Allen Goggin Farm Plat=Platinum, Ad=Admire, Orth=Orthene

Effects of Foliar Insecticides on Hornworm Incidence – Nelson Co. – Chuck Heil Farm

Effects of Foliar Insecticides on Aphid Colonies – Nelson Co. – Chuck Heil Farm

Effects of Foliar Insecticides on Vigor of Burley Tobacco – Nelson Co. – Chuck Heil Farm

Effects of Foliar Insecticides on Burley Tobacco Yield – Nelson Co. – Chuck Heil Farm

Alfalfa burn down test Experience has shown that eradicating an established alfalfa stand to plant no-till tobacco can be challenging. This study was conducted on an approximately seven year old stand of alfalfa. Treatments included fall and spring application of round-up with and without a broadleaf herbicide (Clarity). Contrary to previous studies the spring treatments appeared to be more effective for eliminating alfalfa. Work will Continue to identify effective means of controlling alfalfa prior to planting no-till tobacco.

Alfalfa Burndown (No-till Tobacco) Fayette County – Spindletop Farm Treatments:RateTiming 1 = Round-up WeatherMAX3 qt/AFall* 2 = Round-up WeatherMAX2 qt/AFall* 3 = Round-up WeatherMAX44oz./AFall* 4 = Round-up WeatherMAX2qt/AFall* plus Clarity1pt/AFall* 5 = Clarity1 qt/AFall* 6 = Round-up WeatherMAX3qt/ASpring 7 = Round-up WeatherMAX2qt/ASpring plus Clarity1qt/ASpring 8 = Round-up WeatherMAX2qt/ASpring plus Clarity'1pt/ASrping * 2 qt/A Round-up Weathermax applied 30 days prior to transplant

Alfalfa Burndown (No-till Tobacco) Fayette County – Spindletop Farm Before Spring Applications

Alfalfa Burndown (No-till Tobacco) Fayette County – Spindletop Farm Mid-season rating

Alfalfa Burndown (No-till Tobacco) Fayette County – Spindletop Farm Mid-season rating