New possibilities in late blight control

Transcription

1 New possibilities in lte blight control EuroBlight Workshop Arhus, Denmrk My 2017 Tim Buchheim

2 Oro Agri Estblished 2001 in South Afric develops nd mnufctures ptented products for griculturl, home nd industril pplictions worldwide, specilizing in products tht re sfe to the user nd environment nd tht provide n effective, yet residue free solution to our clients. Product ctegories include djuvnts, pesticides, soil conditioners nd folir fertilizers.

3 Oro Agri Regionl Offices Mnufcturing North Americ Centrl Americ South Americ Asi & Indi Europe, North Afric, Middle Est & Russi Sub-Shrn Afric Austrli 87 countries 7 Regionl Mngers 120 employees

4 Products for lte blight control Multipurpose product including the.i. ornge oil tht cn be used s insecticide, fungicide nd cricide. The product works by disrupting the protective wxy lyers of insects nd fungi resulting in desicction of the trget. Trgeted to be certified for orgnic production.

5 Products for lte blight control Premium djuvnt for insecticides, fungicides nd herbicides, provides excellent spreding, deposition nd penetrtion. Certified for orgnic use in some EU countries.

6 Trils with PREV-AM 3 greenhouse trils in 2016 (1) nd 2017 (2) Trils included n untreted control nd reference product tretment Design: Rndomized complete block with 4 replictes. PREV-AM ws pplied 3 dys (2) or 1 dy (1) before rtificil inocultion with P. infestns. % necrotic folige ws ssessed t different timings fter the inocultion.

7 PREV-AM 1 % necrotic folige 100,0 90,0 80,0 c c 70,0 60,0 50,0 40,0 c b 30,0 20,0 10,0 b b 0,0 4 dpi 5 dpi 7 dpi UTC PREV-AM; 0.3% mncozeb (75%) 2 kg/h 4 dpi 5 dpi 7 dpi UTC mncozeb (75%) 2 kg/h PREV-AM 0.3% Tril conducted t

8 PREV-AM 2 55,0 50,0 45,0 40,0 35,0 30,0 25,0 20,0 15,0 10,0 5,0 0,0 e % necrotic folige f f bc b bc b 5 dpi 7 dpi 11 dpi UTC PREV-AM 0.4% -3d PREV-AM 0.8% -3d propmocrb + fluopicolide ( g/l) 1.2 L/h - 3d 5 dpi 7 dpi 11 dpi UTC PREV-AM 0.4% -3d PREV-AM 0.8% -3d propmocrb + fluopicolide ( g/l) 1.2 L/h - 3d Tril conducted by

9 PREV-AM 3 100,0 90,0 80,0 70,0 60,0 50,0 40,0 30,0 20,0 10,0 0,0 % necrotic folige b bc 7 dpi c UTC PREV-AM 0.4% -1d PREV-AM 0.6% -1d mncozeb (75%) 0.5% p/v -1d 7 dpi UTC 93.0 PREV-AM 0.4% -1d 27.9 PREV-AM 0.6% -1d 15.8 mncozeb (75%) 0.5% p/v -1d 0.5 Tril conducted by

10 Tril with WETCIT One field tril in 2016 Trils included n untreted control, reference product tretment nd totl of 11 different tretments with different lte blight control progrms. Design: Rndomized complete block with 4 replictes. We compred the results of the ddition of WETCIT to progrm tht includes 5 tretments of mndipropmid (250 g/l), 4 tretments of propmocrb + fluopicolide ( g/l) nd 1 tretments of cyzofmid (160 g/l) vs. sme progrm without WETCIT. % folige dmge ws ssessed t 6 different timings during the tril.

11 Spry progrm 16-Jun 23-Jun 01-Jul 06-Jul 13-Jul 14-Jul 18-Jul 25-Jul 29-Jul 03-Aug 08-Aug Tretment Number T1 T2 T3 T4 T5-1 T5-2 T6 T7 T8 T9 T10 A 0.6 L/h mndipropmid (250 g/l) 1.2 L/hpropmocrb + fluopicolide ( g/l) 0.5 L/h cyzofmid (160 g/l) K 0.6 L/h mndipropmid (250 g/l) % Wetcit 1.2 L/h propmocrb + fluopicolide ( g/l) % Wetcit 0.5 L/h cyzofmid (160 g/l) % Wetcit

12 Results Tril conducted by

13 Summry Both tested product hve proven to possess gret potentil to help control potto lte blight both in conventionl nd orgnic potto production. PREV-AM provides good preventive ction delying the development of lte blight. It cn therefore be included in trditionl sprying progrms nd cn possibly be n lterntive to copper in orgnic potto production. WETCIT hs impressively shown to be perfect prtner for your trditionl sprying progrm helping to chieve the mximum efficcy of the spryed products. Both products will be further tested to confirm the shown results under different conditions.

14 Thnk you for your ttention!