"Gray Worms" and Other Vine Parasites, During Budburst (Spanish Edition) by Martin Perez

"Gray worms" and other vine pests during bud break is a reference work in Viticulture Spanish, dedicated to the study of Parasites which affect the vine during the sensitive phases of the Budburst.

The author, Jose Luis Perez Marin, analyze the Gray worms, butterflies of the family Noctuidae, responsible for significant damage in the vineyards of La Rioja during the 1980s. These pests have sometimes destroyed up to 60% of the buds during phenological stages C and D.

The main species studied:

• Agrotis segetum Den. and Schiff.
• Agrotis exclamationis L.
• Agrotis ipsilon Huf.

These species are known to cause damage through their larvae, which nibble on the buds, forming half-moon incisions.

Pest control strategies:

The author recommends targeted treatments starting at phenological stage B/C, when the first symptoms appear. Various application methods are proposed:

• Poisoned bait
• Foliar spraying
• Ground pellet application

Effective phytosanitary products:

• Chlorpyrifos
• Deltamethrin
• Acephate
• Cyfluthrin
• Monocrotophos
• Methomyl
• Trichlorfon
• Endosulfan

Other identified threats:

The book also addresses theAcarosis caused by the mite Calepitrimerus vitis Nal., often more destructive than the Gray worms. This infestation is characterized by white spots on the leaves and a slowdown in growth.

The recommended treatment is applied at phenological stage C/D, using sprays based onOleophosphorized, or from stage D with the following active substances:

• Endosulfan
• Methyl-demeton + Bromopropylate
• Tetradifon + Dicofol + Omethoate
• Bromopropylate
• Dicofol
• Dicofol + Tetradifon

An indispensable tool for winemakers:

This guide is a valuable resource for the winegrowers, the Oenologists and the agricultural technicians wishing to deepen their knowledge on the vine protection facing pests. With detailed technical information and practical advice, it enables the implementation of effective control strategies to preserve the quality of crops.

Item features:

• Title: Gray worms and other vine parasites during bud break
• Author: Jose Luis Perez Marin
• Editor: Ministry of Agriculture, Fisheries and Food
• Language: Spanish
• Year of publication: 1992
• Format: Paperback
• Dimensions: 17 x 24 cm
• Pages: 90
• ISBN: I'm sorry, but that appears to be an ISBN number and does not contain any text to translate. If you have any text in French that you would like translated into English, please provide it, and I'd be happy to help.
• EAN13: 9788474799538