Infection of Botrytis cinerea in Different Fungicide Application Programs in Semillon Grape

Öz

Botrytis cinerea can lead to reduction in the yield and quality of table and wine grapes, with high economic loses in the world and also Turkey. In this work was compared fungicide applications in trial vineyard of Semillon cv. with that of several grower vineyards the effectiveness to fruit infection of Botrytis cinerea at harvest. Studies were conducted at five sites in Tekirdağ. All fungicide treatments reduced mean B. cinerea berry infection when compared to the unsprayed control treatment. Trial programme resulted in at least disease severity (1.46%) and incidence (5.83%) and this programme was used fungicide at flower stage for B. cinerea. The highest disease severity (11.46%) and incidence (31.67%) was noted in Grower I Programme. This is followed by Grower III programme, Grower II programme and Grower IV programme, respectively. The recommendation for control of B. cinerea in the Trakya region is to apply one spray at bloom.

Anahtar Kelimeler

• Botrytis cinerea,fungicides,berry infection

Farklı Fungisit Uygulama Programlarında Semillon Üzümünde Botrytis cinerea’nın Enfeksiyonu

Öz

Botrytis cinerea dünyada olduğu gibi aynı zamanda Türkiye’de de sofralık ve şaraplık üzümlerde önemli ekonomik kayıplara neden olabilmektedir. Bu çalışmada, Semillon şaraplık üzüm çeşidinde B. cinerea’nın hasat döneminde meydana getirdiği meyve enfeksiyonlarına karşı fungisit deneme programı ile üreticilerin uyguladığı fungisit programları karşılaştırılmıştır. Deneme Tekirdağ ilinde gerçekleştirilmiştir. B. cinerea’ya karşı fungisit uygulaması yapılmamış kontrol üretici bağındaki hastalık şiddeti %66,67 olarak tespit edilmiştir. Uygulanan tüm fungisit programları konrol üretici bağı ile karşılaştırıldığında B. cinerea’nın tane enfeksiyonlarını azalttığı tespit edilmiştir. En az hastalık şiddeti (%1,46) ve hastalık oranı (%5.83) çiçeklenme döneminden itibaren başlatılan deneme programında tespit edilmiştir. En yüksek hastalık şiddeti (%11.46) ve hastalık oranı (%31.67) I. üreticinin uyguladığı programda tespit edilmiştir. Bunu sırasıyla III. üretici programı, II. üretici programı ve IV. üretici programı takip etmiştir. Trakya Bölgesi’nde B. cinerea’nın kontrolü için çiçeklenme döneminde fungisit uygulamalarının başlatılması gerekmektedir.

Anahtar Kelimeler

• Botrytis cinerea,fungisit,tane enfeksiyonu

Kaynakça

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