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POTATO BLIGHT PRODUCTS 2008
Product   Active Ingredients Dose rate (L/ha or kg/ha) Maximum No. of applications Spray Intervals Harvest Interval LERAP Mode of Action Movement
in plant
Adagio   274 g/l mancozeb + 201 g/l chlorothalonil 2.4-3.2 l/ha 5
(with 16 l/ha maximum)
7, 10 and 14 days 7 days B Protectant Contact
Bravo 500 Syngenta 500 g/l chlorothalonil 2-3 l/ha 5 7, 10 and 14 days 7 days B Protectant Contact
Consento Bayer CropSciences 75 g/l fenamidone
+ 375 g/l propamocarb
2l/ha 6 (in blocks of 3) or 50% of programme 7 to 10 days 7 days B Protectant, with some curative Contact, systemic and translaminar
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
C 50 Sipcam 500g/kg cymoxanil 0.18 - 0.24 kg/ha 4 7, 10 and 14 days 7 days None Limited protectant and curative Translaminar
Dithane DF NT Interfarm UK 75% w/w mancozeb 1.7 or 2 kg/ha No limit 7, 10 and 14 days 7 days None Protectant Contact
Dithane 945 Interfarm UK 80% mancozeb 1.7 or 2 kg/ha No limit 7, 10 and 14 days 7 days None Protectant Contact
Epok 600 EC Belchim Crop Protection 400 g/l fluazinam + 200 g/l mefenoxam (metalaxyl-m) 0.375 l/ha 3
(1 advised in 2008 following genotype 13)
7 7 B Protectant Contact and systemic
Electis/
Roxam
Dow
AgroSciences
8.3% w/w zoxamide (zoxium) + 66.7% w/w mancozeb 1.8 kg/ha 10 7, 10 and 14 days 7 days B Protectant Contact
Fubol Gold WG Syngenta 4% w/w mefenoxam (metalaxyl-m)+ 64% w/w mancozeb 1.9 kg/ha 3
(before 15th July)
(1 advised in 2008 following genotype 13))
7, 10 and 14 days 7 days None Protectant with limited curative +eradicant Systemic and contact
Globe Sipcam 60 g/kg cymoxanil+ 700 g/kg mancozeb 1.5 kg/ha 6 7, 10 and 14 days 7 days B
Protectant with limited curative
Translaminar and contact
Infinito Bayer
CropScience

62.5 g/l fluopicilide + 625 g/l propamocarb
1.2 and 1.6 l/ha Total dose 6.4 l/ha 7 to 10 days 7 days B Protectant with curative Translaminar and systemic
Invader BASF
75 g/kg dimethomorph + 667 g/kg mancozeb
2 kg/ha 8
(max dose 16 kg/ha)
(same group as Revus and Valbon)
7, 10 and 14 days 7 days B Protectant with some curative Translaminar and contact
Merlin Bayer
CropScience
375 g/l propamocarb + 375 g/l chlorothalonil 1.5-2.5 l/ha 15 litres/ha 7, 10 and 14 days
7 days and not after end August
B Protectant, with some curative Systemic and contact
Proxanil
New 2008
Sipcam 400 g/l propamocarb + 50 g/l cymoxanil 2 l/ha 4 7 days 14 days None Systemic and curative Systemic and translaminar
Ranman TwinPack 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
Revus Syngenta 250 g/l
mandi-propamid
0.6 l/ha 4
(but same group as Valbon and Invader)
7 -10 days 3 days None Protectant Contact and translaminar
Shirlan Syngenta 500 g/l fluazinam 0.3 or 0.4 l/ha 10
Max dose 3 l/ha)
5, 7, 10 and 14 days None B Protectant Contact

Shinkon
New 2008
ProCam
Nissan)
100 g/ha amisulfuron 0.5 litres/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
Tattoo Bayer
CropScience
248 g/l propamocarb + 302 g/l mancozeb 4 L/ha 5 10 and 14 days 14 days and not after end August None Protectant, with some curative + eradicant Systemic and contact
Valbon Certis
Europe
17.5% benthia-valicarb + 70% mancozeb 1.6 kg/ha 6 and no more than 50% of programme
(but same group as Revus and Invader)
7 -10 days 7 days B Protectant with limited curative Translaminar

 

 

POTATO APHICIDES 2008
Product Manu-
facturer
Active
Ingredients
Dose
rate
(L/ha
or
kg/ha)
Chemical
Group and
resistance
status
Maximum
No. of
applications
Harvest
Interval
LERAP Mode of
Action
Movement
in plant
Actara Syngenta 600 g/l thia-
methoxam
as a FS
80 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
Aphox Syngenta 500g/kg pirimicarb
as a WDG
0.280 kg/ha Carbamate,
Resistance: carboxyl-
esterase-R3 + MACE
None stated 3 days None Contact
+ fumigant
Contact, trans-
laminar
Biscaya 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
Dovetail Syngenta 5 g/l lamda-cyhalothrin +100 g/l pirimicarb, as an EC 1.5 l/ha Pyrethroid + carbamate
Resistance: kdr + carboxyl-
esterase-R3 + MACE
8 sprays or 12 l/ha 3 days A Contact
+ stomach poison
+ fumigant
Contact, trans-
laminar
Hallmark with Zeon Tech-nology Syngenta 100 g/l lamda-cyhalothrin, as a microcapsule suspension 0.075 l/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 SP
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
Plenum
WG
Syngenta 50% w/w pymetrozine, as a WDG 0.3 kg/ha Pyridine
No known resistance
1 spray in ware
2 sprays in seed crops
7 days None Prevents feeding Systemic
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 in 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

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