Technical - The essential site for the professional potato grower

Click here for the latest update on potato blight strategies - May 2011

Click here for the latest update on potato crop application - March 2011

Click here for the latest update on soil pests - January 2011

Click here and go to Syngenta's Knowledge Fight Against Blight Update.

Click here and go to Syngenta's Knowledge Centre Nematicide Stewardship Update.

Click here and go to Syngenta's Knowledge Centre Desiccation Update.

Click here and go to Syngenta's Knowledge Centre Blight Update featured in the
May/June 08 issue.

POTATO FUNGICIDES 2011
Product	Manufacturer	Active Ingredients	Dose rate litres or kg/ha	Maximum No. of applications	Latest time of application	Harvest interval	LERAP	Mode of action	Movement in plant
Consento	Bayer CropScience	75 g/l fenamidone + 375 g/l propamocarb	2 l/ha	6 (in blocks of 3) or 50% of programme	7 days	7 days	B	Protectant, with some curative	Contact, systemic and translaminar, new label rec for Alternaria
Curzate M WG	Du Pont	4.5% w/w cymoxanil + 68% w/w mancozeb	2 kg/ha	No limit	7, 10 and 14 days	None	None	Protectant and curative	Translaminar and contact
C50	Sipcam	500 g/kg cymoxanil	0.24 kg/ha in mix	4 (0.96kg/ha)	7, 10 and 14 days	7 days	None	Limited protectant and curative	Translaminar
Cymbal 45	Belchim Crop Protection	450 g/kg cymoxanil WDG	0.2 kg/ha	No limit	7 days	14 days	None	Curative	Translaminar
Dithane DF NT	Interfarm UK	75% w/w mancozeb	1.7 to 2 kg/ha	8	7, 10 and 14 days	7 days	None	Protectant	Contact , new Alternaria label rec-commendation
Dithane 945	Interfarm UK	80% b	1.7 to 2 kg/ha	8	7, 10 and 14 day	7 days	None	Protectant	Contact , new Alternaria label rec-commendation
Decabane NEW FOR 2011	BASF	80 g/kg ametoctradin and 480 g/kg mancozeb	2.5 kg/ha	4 10 kg/ha	7 to 10 days	7 days	B	Protectant	Contact
Epok	Belchim Crop Protection	400 g/l fluazinam + 200 g/l metalaxyl-m EC	0.375 l/ha	3 on label (but 1 advised)	7 days	7 days	B	Protectant	Contact and systemic
Electis/Roxam	Gowan Comercio	8.3% w/w zoxamide(zoxium) + 66/7% w/w mancozeb	1.8 kg/ha	10	7, 10 and 14 day	7 days	B	Protectant	Contact
Fubol Gold WG	Syngenta	3.88% w/w metalaxyl-m + 64% mancozeb	1.9 kg/ha	3 on label before 31 Aug (but 1 advised)	7 days	7 days	None	Protectant with limited curative +eradicant	Systemic and contact
Infinito	Bayer CropScience	62.5 g/l fluopicolide + 625 g/l propamocarb	1.6 l/ha	Total dose 6.4 l/ha	7 days	7 days	None	Protectant anti-sporulant with curative	Translaminar and systemic
Invader	BASF	75 g/kg dimethomorph + 667 g/kg mancozeb	2.4 kg/ha new for 2011	6 (max dose 14.4 kg/ha)	7, 10 and 14 day	7 days	B	Protectant with some curative	Translaminar, locally systemic and contact
Morph NEW FOR 2011	MUK	500 g/kg dimethomorph SC	0.3 l/ha		7 to 10 days	7 days	B	Curative	Systemic and contact
Option	Du Pont	600 g/kg cymoxanil WG	0.15 kg/ha in mix	No limit	7 days	None	None	Curative	Translaminar
Proxanil	Sipcam	400 g/l propamocarb + 50 g/l cymoxanil SC	2 l/ha	4	7 days	14 days	None	Systemic and curative	Systemic and traslaminar
Quell Flo re-registered 2011	Interfarm UK	455 g/l mancozeb SC	3.3 l/ha	8	7, 10 and 14 day	7 days	None	Protectant	Contact
Ranman Twin pack	Belchim Crop Protection	400 g/l cyazofamid + organosilicone adjuvant	0.2 l/ha + 0.15 l/ha	6 (in blocks of 3 with 3 different sprays between)	7-10 days	7 days	None	Protectant	Contact
Resplend NEW FOR 2011	BASF	300 g/litre ametoctradin and 225 g/litre dimethomorph	0.8 l/ha	4 3.2 l/ha	7 -10 days	7 days	None	Protectant	Translaminar, locally systemic and contact
Revus	Syngenta	250 g/l mandipropamid SC	0.6 l/ha	4	7-10 days	3 days	None	Protectant, some curative	Contact and translaminar
Shirlan	Syngenta	500 g/l fluazinam	0.3 or 0.4 l/ha	3 l/ha	5 days for 0.3 l/ha 7 days for 0.4 l/ha	None	B	Protectant	Contact
Shinkon	Nissan via ProCam and UAP	100 g/ha amisulbrom	0.5 l/ha	6 (or no more than 50% of total spray programme)	7-10 days	7 days	B	Protectant	Contact
Tanos	Du Pont	25% w/w famoxadone + 25%w/w cymoxanil	0.5-0.7 kg/ha	6 (with no more than 3 in a row)	7-10 days	14 days	B	Protectant and curative	Contact and translaminar
Valbon	Certis Europe	17.5% benthiavalicarb + 70% mancozeb	1.6 kg/ha	6 (or no more than 50% of total spray programme)	7-10 days	7 days	B	Protectant with limited curative	Translaminar

POTATO HERBICIDES 2011
Product	Manufacturer	Active Ingredients	Dose rate litres or kg/ha	Maximum No. of applications	Latest time of application	LERAP	Mode of action	Target weed
Afalon	Makhteshim-Agan	450 g/l linuron	1.35 l/ha	1	Pre-emergence	B	Residual	Broad-leaved weeds and AMG
Artist	Bayer CropSciences	17.5% w/w metribuzin + 24% w/w flufenacet WP	2.5 kg/ha	1	Pre-emergence, check varieties	None	Residual	Grass and broad-leaved weeds
Basagran SG	BASF	87% w/w bentazone WG	0.85 kg/ha	Up to 1.65 kg/ha 1-2 applications	Post-emergence, crop 15 cms high	None	Contact	Broad-leaved weeds
Cinder	Makhteshim-Agan	400 g/l pendimethalin CS	3.3/l/ha	1	Pre-emergence	B	Residual	Grass and broad-leaved weeds
Defy	Syngenta	800 g/l prosulfocarb EC	5 l/ha	1	At emergence	B	Residual	Grass and broad-leaved weeds
Gamit 36CS	Belchim Crop Protection	360 g/l clomazone CS	0.25 l/ha	1	Pre-emergence	None	Residual	Broad-leaved weeds, (cleavers)
Harvest (was Basta)	Bayer CropScience	150 g/l glufosinate-ammonium SC	2-3 l/ha	2 per crop	Pre-emergence	None	Contact, non-selective	Grass and broad-leaved weeds
Laser + adjuvant	BASF	200 g/l cycloxydim EC	0.5 -1.25 l/ha	1	Post-emergence	None	Systemic	Grass weeds
Lingo	Belchim Crop Protection	45 g/l clomazone + 250 g/l linuron ZC	2 l/ha	1	Pre-emergence	None	Residual and contact	Grass and broad-leaved weeds
Metric	Belchim Crop Protection	60 g/l clomazone + 233 g/l metribuzin ZC	1.5 l/ha	1	Pre-emergence, check varieties	B	Residual	Grass and broad-leaved weeds
Mission	Interfarm UK	200 g/l diquat liquid	1.5 to 2 l/ha	2	Pre-emergence	None	Contact, non-selective	Broad leaved weeds
Retro	Syngenta	200 g/l diquat SL	2-4 l/ha	1	Crop emergence, 10% earlies, 40% maincrop	None	Contact, non-selective	Broad leaved weeds
Shark	Belchim Crop Protection	60 g/l carfentrazone-ethyl ME	0.33 l/ha	1	Pre-emergence to 5% emerged earlies, 10% maincrop	None	Contact, non-selective	Broad-leaved weeds
Shotput	Makhteshim-Agan	70% metribuzin WDG	0.75 to 1.5 kg/ha (soil type and varieties	1.5 kg/ha earlies, 2 kg/ha maincrop	Pre and post- emergence, check varieties	B	Contact and residual	Grass and broad-leaved weeds
Sencorex	Interfarm UK	70% metribuzin WDG	0.75 to 1.5 kg/ha (soil type and varieties)	1.5 kg/ha earlies, 2 kg/ha maincrop	Pre and post- emergence	B	Contact and residual	Grass and broad-leaved weeds
Shogun/ Falcon	Makhteshim-Agan	100 g/l propaquizafop EC	1.5 l/ha	1	Post-emergence	None	Residual	Grass weeds
Stomp Aqua NEW 2010	BASF	455 g/l pendimethalin CS	2.9 l/ha	1	Pre-emergence	B	Residual in mix	Grass and broad-leaved weeds
Stomp 400 SC	BASF	400 g/l pendimethalin	3.3 l/ha	1	Pre-emergence	B	Residual in mix	Grass and broad-leaved weeds
Titus	Makhteshim-Agan	25% w/w rimsulfuron WDG	59 gms/ha	1	Post-emergence, potatoes 25 cms high	None	Contact, Systemic	Broad-leaved weeds

POTATO APHICIDES 2011
Product	Manu- facturer	Active Ingredients	Dose rate litres or kg/ha	Chemical Group and resistance status	Maximum No. of applications	Harvest Interval	LERAP	Mode of Action	Movement in plant
Actara	Syngenta	250 g/l thia- methoxam as a WDG	80 g/ha foliar 100 g/ha in-furrow	Neo- nicotinoid	1 spray in ware 2 sprays in seed crops ( + no more than 2 neo- nicotinoid in 1 crop)	7 days	B		Systemic and trans- laminar Virus reduction on label
Aphox	Syngenta	500g/kg pirimicarb as a WDG	280 g/ha	Carbamate, Resistance: carboxyl- esterase-R3 + MACE	None stated	3 days	None	Contact + fumigant	Contact, trans- laminar
Biscaya (New formulation 2011)	Bayer Crop Science	240 g/l thiacloprid	0.4 l/ha	Neo- nicotinoid No known resistance	1 spray in ware 2 sprays in seed crops ( + no more than 2 neo- nicotinoid in 1 crop)	14 days	None	Contact + stomach poison	Systemic
Hallmark with Zeon Tech-nology	Syngenta	100 g/l lamda-cyhalothrin, as a microcapsule suspension	75 ml/ha	Pyrethroid + carbamate Resistance: kdr + carboxyl- esterase-R3	300 ml/ha	None	A	Contact + stomach poison + fumigant	Contact, trans- laminar
InSyst	Certis	20% w/w acetamiprid as a WSP	250 g/ha	Neo- nicotinoid	1 spray in ware 2 sprays in seed crops ( + no more than 2 neo- nicotinoid in 1 crop)	14 days	B		Systemic and trans- laminar
Major	Makhteshim-Agan	50 g/l lamda-cyhalothrin as a capsule suspension	150ml/ha	Pyrethroid	600 ml/ha		B	Stomach poison, prevents feeding	Contact
Plenum WG	Syngenta	50% w/w pymetrozine, as a WDG	0.3 kg/ha	Pyridine No known resistance	2 spray in ware 3 sprays in seed crops	7 days	None	Prevents feeding	Systemic
Sumi-Alpha or Sven	Interfarm UK	25 g/l esfenvalerate	200 ml/ha	Pyrethroid	4 sprays	7 days	B	Stomach poison, prevents feeding	Contact
Teppeki	Belchim Crop Protection	50% w/w flonicamid as a WDG	0.16 kg/ha	Pyridine- carboxamide No known resistance	2 sprays	14 days	None	Prevents feeding	Systemic and trans- laminar

Aphicide Resistance
There are three types of resistance carried by the main virus vector, Myzus persicae. Carboxylesterase overproduction is a metabolic resistance where the aphids produce more enzymes to wrap up the insecticide before it can attack the aphid’s nervous system. The other mechanisms are target site in which the resistance is absolute and is caused by the mutation or modification of protein targets onto which the insecticide normally binds, making the insecticide ineffective. MACE (modified acetylcholinesterase) resistance gives strong resistance to carbamate insecticides whereas Kdr (or knockdown) resistance is associated with all pyrethroids.

Insecticide actives	Group	Resisted by
pirimicarb	carbamate	MACE +/or carboxylesterase-R3
lamda-cyhalothrin	pyrethroid	kdr + carboxylesterase-R3
pirimicarb + lamda-cyhalothrin	carbamate + pyrethroid	MACE + kdr
pymetrozine	pyridine	None
Neonicotinoid	thiamethoxam, thiacloprid, acetamiprid	None




All contents © Copyright Potato Review. All rights reserved