Safe Procurement and Production Manual

Nursery crops

A systems approach for the production of healthy nursery stock. The manual, published by the Oregon Association of Nurseries, is divided into 3 main parts. A systems approach introduction, voluntary best practices for your nursery, and the next step: systems approach certification.

Live plant imports: the major pathway for forest insect and pathogen invasions of the US

Insects

A discussion about live plant imports as an important invasion pathway for non-native plant pests. The authors discuss the effect of current regulation, the need for updated regulation, and the recent and proposed changes to plant import regulation.

Phosphorus Supply Alters Tuber Composition, Flower Production, and Mycorrhizal Responsiveness of Container-Grown Hybrid Zandtedeschia

Geophyte
The purpose of this study was to determine if arbuscular mycorrhizal fungi (AMF) inoculation influences plant development, reproduction (vegetative and floral), and/ or tuber quality in calla lily (Zantedeschia spp. and hybrids).

Inoculation with Vesicular-Arbuscular Mycorrhizal Fungi and Rhizobacteria Alters Nutrient Allocation and Flowering of Harlequin Flower

Bulbs
The objectives of the study were to 1) determine whether addition of AMF inoculum into the growing medium of harlequin flower alters aspects of flower production, bulb production, and bulb quality, and 2) assess whether other rhizosphere organisms present in the AMF inoculum play a role in plant response to inoculation.

Soil Pasteurization and Inoculation with Glomus intraradices Alters Flower Production and Bulb Composition of Zephyranthes spp.

Bulbs
The objective of this study was the determine whether addition of vesicular-arbuscular mycorrhizal fungi (VAMF) inoculum into the growing medium of different Zephyranthes spp. alters aspect of flower production, bulb production, and bulb quality.

Inoculation with Arbuscular Mycorrhizal Fungi Alters Nutrient Allocation and Flowering of Freesia x hybrida

Geophytes
Study conducted to (1) determine whether addition of AMF inoculum into the growing medium of different Freesia x hybrida cultivars alters flower production, corm production, and corm chemical composition, and (2) to assess whether the other rhizosphere organisms present in the AMF inoculum play a role in plant response to inoculum.

Soil Pasteurization and Mycorrhizal Inoculation Alter Flower Production and Corm Composition of Brodiaea laxa 'Queen Fabiola'

Bulbs
Research was conducted on the wild hyacinth 'Queen Fabiola' (Brodiaea laxa) to determine whether the addition of mycorrhizal inoculum into the growing medium of Brodiaea laxa altered aspects of flower production, corm production, and corm quality.

Narcissus-Recommendations for Control of Basal Rot of Daffodils

Bulbs
A discussion about the control of basal rot of daffodils caused by the fungus Fusarium oxysporum F. sp. Narcissi. Topics discussed by the Washington State University affiliated author include basal rot lifecycle, and a series of recommendations on practices used to control basal rot of daffodils.

Gladiolus-Postharvest Handling of Gladiolus Corms

Post Harvest
Guide for the prevention and control of Stromatinia, Curvularia, Botrytis, Fusarium corm rot, thrips, nematodes, bulb mites and aster yellows mycoplasm. Information provided on how to cure and store gladiolus corms, dormancy, and Rhizoctonia solani.

Botrytis Develops Resistance to Fungicide Used in Bulb Crops

Plant Disease
Study conducted in response to reports from growers of bulb crops indicated a loss of Botrytis control with the fungicides Benlate and Chipco-26019 in both greenhouse and field-grown situations. The authors discuss the results, fungicide resistance and how to avoid fungicide resistance.

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