Use of 2-aminobutane as a fumigant for control of gangrene, skin spot and silver scurf diseases of potato tubers

  title={Use of 2-aminobutane as a fumigant for control of gangrene, skin spot and silver scurf diseases of potato tubers},
  author={D. C. Graham and G Alexander Hamilton and C. E. Quinn and A. D. Ruthven},
  journal={Potato Research},
SummaryFumigation of tubers with 2-aminobutane (sec-butylamine) gas at a dosage of 200 mg/kg in simply made fumigation chambers gave very good control of the diseases gangrene (caused byPhoma exigua var.foveata) and skin spot (Oospora pustulans) if treatment was done within 14 days of harvesting. Some control of silver scurf disease (Helminthosporium solani) was also obtained, but results were always poorer than with gangrene or skin spot. Fumigation did not control tuber blight (Phytophthora… 

Control of potato gangrene by fumigation of tubers with 2-aminobutane after periods of storage

It is suggested that the poorer gangrene control given by fumigation after storage resulted from lower absorption and poorer skin penetration by the 2-aminobutane.

Fumigation of bulk-stored potatoes with 2-aminobutane for control of gangrene, skin spot and silver scurf diseases

SummaryIn October, 1970, a 35-tonne bulk of potato tubers cv.Pentland Crown, containing samples of cvsKing Edward andRedskin, was fumigated with 2-aminobutane in a bin store fitted for internal

Summary of results of experiments on the control of the potato tuber fungal diseases gangrene, dry rot and skin spot with various chemical substances, 1966–80

There are several active fungicides whose use can be adapted to the particular needs and storage facilities of farmers and merchants, and where fungicides did not control pathogens, failure was traced to too low a residue or poor distribution of the chemical over the tuber surface, suggesting faulty treatment or unsatisfactory methods of application.

Tests of fungicides for controlling gangrene (Phoma exigua var.foveata) and dry rot (Fusarium solani var.coeruleum andF. sulphureum) on potatoes during storage

Fungicide suspensions were tested for controlling gangrene and dry rot on potatoes during storage, with prochloraz, sisthane, imazalil, thiabendazole, carbendazim and nuarimol were the most effective in controllinggangrene.

Methods of testing fungicides for controlling skin spot (Polyscytalum pustulans) on potatoes during storage

In both experiments carbendazim, thiabendazole and Thiophanate methyl and in one experiment thiophamine were most effective in decreasing incidence of skin spots.

Control of silver scurf (Helminthosporium solani) disease of potato with benomyl and thiabendazole.

Benomyl and thiabendazole, applied as dusts to seed potatoes before chitting (sprouting), reduced the incidence of silver scurf disease on the progeny at lifting and during subsequent storage, and there was no reduction in the amount of disease in subsequent generations of potato crops without further fungicidal treatment.

Effect of fumigation of potato seed tubers with 2-aminobutane on plant growth and yield

Fumigation did not have any substantial effect on the growth pattern or the yield of the crop obtained from treated seed, although in most cases it was probable that there were small increases in the number of sprouting eyes, percentage emergence, stem number and in weight and number of seed tubers at harvest.

Determining the susceptibility of potato clones to gangrene (Phoma exigua var.foveata)

It was found that both site and isolate affected lesion size and interactions between isolate and clone and also between site and clone had some effect on the ranking order of clones, particularly among those of intermediate susceptibility.

Chemical control of bacterial soft-rot of wounded potato tubers

Five chemicals were applied to batches of wounded potato tubers by dipping in 1.5 g litre solutions for 1 min to reduce rotting but 8-hydroxyquinoline, SD740823AX and chlorine dioxide also gave some control and Elbadyne had no significant effect.

Incidence of pathogenic fungi on Scottish potato seed stocks derived from stem cuttings

SummaryFamilies of tubers of up to 14 cultivars were produced from rooted stem cuttings in the glasshouse and multiplied for up to six years in Scotland on fields that had not grown potatoes for at



Control of Potato Gangrene and Skin Spot Diseases by Fumigation of Tubers with Sec-butylamine

Skin spot, caused by Oospora pustulans, is also important, but in this case the organism does not rot tuber flesh: small pustules appear on the surface and, more importantly, eyes may be killed and sprouting affected.


In experiments on skin-spot disease of potatoes, Kerr's Pink proved the most susceptible of twenty-four commercial varieties; Arran Banner, Majestic and King Edward were highly susceptible; Home Guard and Golden Wonder were highly resistant.

Residual mercury content of seed potatoes treated with organo‐mercury disinfectant solutions

Before export from Scotland, certain seed potatoes are mechanically washed and then dipped in organo-mercury fungicide solutions to control tuber-borne diseases. During transit and after receipt,

Methods of measuring the prevalence of pathogenic fungi on potato tubers

Methods are described whereby the prevalence of pathogenic fungi on seed potato tubers can be measured quickly and quantitatively and recorded directly on punched tape and tabulated by computer.

Field experiments on potato skin spot disease caused by Oospora pttstttlans Owen and Wakef

  • Ann . appl . Biol .
  • 1957

Control of potato tuber diseases with systemic fungicides

  • Proe . 5 th Br . btsectic . Fungic . Conj .
  • 1969

Seed tuber disinfection

  • appl. Biol
  • 1967

Fungistatic activity of non - aromatic amines

  • Phytopathotogy
  • 1970