Reduced dosages of methyl bromide applied under gas-impermeable plastic "lms for controlling soilborne pathogens of vegetable crops

نویسندگان

  • Andrea Minuto
  • Giovanna Gilardi
  • M. L. Gullino
  • Angelo Garibaldi
چکیده

Four experimental trials were carried out at Albenga (Northern Italy) to evaluate the e!ectiveness of reduced dosages of methyl bromide (MB) applied under gas-impermeable "lms in controlling soilborne pathogens of vegetable crops. Forty and thirty g/m2 of MB applied under di!erent types of gas-impermeable "lms controlled Rhizoctonia solani on bean, lettuce and basil, Fusarium oxysporum f. sp. basilici on basil and Sclerotinia sclerotiorum on lettuce. Such treatments greatly decreased survival of arti"cially introduced pathogen inoculum in the soil, with Fusarium oxysporum f. sp. basilici being the most di$cult pathogen to control. Gas impermeable "lms permitted increased retention of MB, thus resulting in higher C]1 (concentration ] time) product values and reduced emissions into the atmosphere, as indirectly shown by measurements carried out by using a portable Fumiscope gas detector. ( 1999 Elsevier Science Ltd. All rights reserved.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Fumigant Alternatives to Methyl Bromide for Managing Nematodes and Weeds in Snapdragon

Effect of several soil fumigants on plant-parasitic nematodes, weeds, and snapdragon ( Antirrhinum majus L.) production were evaluated in a commercial site in southeast Florida in 2002-03. Treatments consisted of methyl bromide (98%) + chloropicrin (2%), metam sodium, metam sodium + chloropicrin, and a nontreated control. All fumigant treatments reduced (P < 0.05) weed populations compared to t...

متن کامل

Non-chemical Alternatives Used in the Usa on Horticultural Crops

A variety of non-chemical alternatives to methyl bromide (MB) fumigation of soil for horticultural crop production have been researched in the USA. Non-chemical alternatives are highly desirable but difficult to implement to reproduce the benefits normally obtained by preplant fumigation of soil in strawberry production. Production of pathogen-free, high-quality planting materials using steam a...

متن کامل

Effects of surface treatments and application shanks on nematode, pathogen and weed control with 1,3-dichloropropene.

BACKGROUND Preplant fumigation with methyl bromide (MeBr) has been used for control of soilborne pests in high-value annual, perennial and nursery crops, but is being phased out. In 2007 and 2008, research trials were conducted to evaluate the effects of surface treatments and two application shanks on pest control with 1,3-dicloropropene (1,3-D) in perennial crop nurseries. RESULTS All 1,3-D...

متن کامل

Perspectives of Anaerobic Soil Disinfestation

Biological soil disinfestation is an environmentally friendly method to disinfest soil. From now on we refer to it as anaerobic soil disinfestation (ASD). With ASD a green manure crop (40 t/ha) is homogeneously incorporated into the topsoil (0-30 cm) after which the field is lightly compacted and irrigated. Subsequently the field is mechanically covered with air tight virtually impermeable film...

متن کامل

Nonchemical management of soilborne pests in fresh market vegetable production systems.

ABSTRACT Nonchemical methods including host resistance, organic amendments, crop rotation, soil solarization, and cultural practices have been used to control soilborne pests in fresh market vegetable production systems. Their suitability as alternatives to methyl bromide will depend on the approach to pest management used by the grower. Traditionally, methyl bromide is used in production syste...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1999