Abstract
Abstract Demethylation inhibitor (DMI) fungicides were evaluated in 1986 and 1987 on nectarine against leaf curl disease ( Taphrina deformans ) and were compared with protectant fungicides. Different rates and timings were evaluated. Primary infection occurred during bloom in both years, on 15–18 September 1986 (leaves unfolding) and on 8–9 September 1987 (leaflets protruding 0–5 mm from buds). DMI fungicides were generally ineffective in all trials except at very high rates. By contrast, protectant fungicides at 85% leaf fall (chlorothalonil plus cupric hydroxide), leafbud movement (captafol, chlorothalonil, or cupric hydroxide), or blossom (chlorothalonil) reduced disease to 0–3%. Eradicative spraying with captafol after infection had occurred was only partially effective in reducing disease.
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Claims 4
Claim · model-written summary
Primary leaf curl infection occurred during bloom in both years.
Not reportedTaxon
Verbatim
e0“Primary infection occurred during bloom in both years”
Claim · model-written summary
DMI fungicides were generally ineffective except at very high rates.
Not reportedTaxonComparatorDirection
Verbatim
e0“DMI fungicides were generally ineffective in all trials except at very high rates”
Claim · model-written summary
Protectant fungicides at indicated phenological stages reduced leaf curl disease to 0–3%.
Not reportedTaxonComparator
Verbatim
e0“protectant fungicides at 85% leaf fall (chlorothalonil plus cupric hydroxide), leafbud movement (captafol, chlorothalonil, or cupric hydroxide), or blossom (chlorothalonil) reduced disease to 0–3%”
Claim · model-written summary
Captafol applied after infection only partially reduced disease.
Not reportedTaxonComparator
Verbatim
e0“Eradicative spraying with captafol after infection had occurred was only partially effective in reducing disease”