Onderzoek naar het beste tijdstip der voorjaarsbespuiting tegen appel- en perenschurft

Pol, P

doi:10.1007/bf02000510

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…The warnings a, b, c and e are based mainly upon the development of the ascospores, which is being followed centrally for the whole country at the Plant Protection Service in Wageningen in the centre of the country. Earlier research (6,3,4,7) has shown that ascospore ripening is sufficiently simul taneous throughout the country to do so. Possible differences in the time of release of the first ascospores and of the last ones from leaves from different varieties and from early or late fallen leaves have also been investigated.…”

Section: The Development Of the Fungusmentioning

confidence: 95%

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The radio warning service for Apple and Pear scab in the Netherlands.

Meijneke¹

1957

NJAS

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The methods used by the Plantenziektenkundige Dienst, Wageningen, in forecasting possible outbreaks of apple and pear scab (Venturia inaequalis and V. pirina) in the Netherlands [cf. 35, p. 302] are described. The work is done in collaboration with the Royal Dutch Meteorological Institute, the Horticultural Extension Service, and several private fruit growers. The warnings are of particular importance to growers using the recently developed curative organic mercurials, which are applied after infection but before the incubation period is over. The methods of Mills and La Plante [35, p. 301] have been adopted. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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Section: The Development Of the Fungusmentioning

confidence: 95%

“…Overwintering stromata have been found only in apple orchards which were not regularly sprayed (6). Consequently we do not generally spray earlier then shortly before the appearance of the first ascospores.…”

Section: The Development Of the Fungusmentioning

confidence: 99%

The radio warning service for Apple and Pear scab in the Netherlands.

Meijneke¹

1957

NJAS

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“…This investigation which lasted until 1950 might be regarded as the first stage of Dutch research on apple and pear scab. The development of perithecia and ascospores and the discharge of ascospores has been closely studied each year since 1938 ( VAN DE POL, 1941 ;GERSONS et al, 1942;KNOPPIEN & VLASVELD, 1947;VLASVELD, 1951) with an interruption in 1945, due to the war. It became apparent from these observations that a correlation did not always exist between the development of apple and pear fruit buds and the development of the fungus.…”

mentioning

confidence: 98%