- Commercial Manager Spain
- Crop Farm Manager Sharjah
- Commercial Manager Soft Fruits
- Assistant Nursery Manager - Tasmania, Australia
- Tissue Culture Lab / Operations Manager - Victoria, Australia
- Irrigation Manager - Tasmania or Victoria
- Chief Executive Officer Hortifrut IG Berries
- Head of Operations - Dubai, United Arab Emirates
- Greenhouse grower / production manager - Brazil
- Experienced International Trade Specialist
Top 5 -yesterday
- "Australian native flowers provide a true seasonality and florists love this variety, variability in supply”
- "Stunning genetics under the tropical sun in Singapore"
- Designed glasshouse unfolds like a flower in just four minutes
- Greenhouse plastic boom blights Vietnam’s vegetable and flower basket
- Plantipp and Concept Plants scoop prizes
Top 5 -last week
Top 5 -last month
Small predatory mites against small mites
The dry bulb mite on tulip
Small phytophagous mites of the family Eriophyidae and Tarsonemidae are increasingly causing serious crop damage in various ornamental and fruit crops in the Netherlands. The most problematic small mite is currently the tomato russet mite, Aculops lycopersici. Other mites of this family that cause damage are the dry bulb mite, Aceria tulipae, during storage of tulip bulbs and the redberry mite, Acalitus essigi, which causes fruit damage in blackberries. Tarsonemid mites give serious problems in various ornamental greenhouse crops. A major pest in amaryllis is the bulb scale mite Steneotarsonemus laticeps. Similar to the dry bulb mite, this mite hides deep into the bulbs and is thereby very hard to control with pesticides or biological control agents. Bromeliaceae are mainly attacked by the tarsonemid Stenotarsonemus ananas, whereas the most abundant tarsonemids in gerbera are Tarsonemus violae and the broad mite Polyphagotarsonemus latus. These mites live deep in flower microhabitats and cause flower deformation.
The bulb scale mite hide deep into amaryllis bulbs
Although these various crops all require a specific approach for pest control, they all have in common that the phytophagous mites in these crops are extremely small and difficult to reach. Previous research showed that predatory mites that are commercially available are often too big to enter the microhabitats of the small phytophagous mites. However, several species of predatory mites that occur in nature seem to be adapted to these microhabitats. Studies with the coconut mite Aceria guerreronis in palm trees show that some species of predatory mites associated with the coconut mite are typically small sized and have flat bodies which enables them to enter the hiding places of coconut mites. Wageningen University & Research has selected a number of these small sized predatory mites for further research. The first laboratory trials look promising: they all accepted the dry bulb mite, redberry mite and the bulb scale mite are prey. Further research will focus on the control of phytophagous mites in the different cropping systems of flower bulbs, Bromeliaceae and blackberry. The first trials in tulip bulbs are currently running. The project will furthermore develop methods to enhance predatory mite establishment and increase our knowledge about the migration behaviour of tarsonemid and eriophyid mites to better target releases of predatory mites.
This work is part of the public private funded project 'Biological control of plant feeding mites' within the Topsector Horticulture & Starting Materials and runs from 2017 till 2020. The project is funded by the ministry of economic affairs and the private partners Anthos/iBulb, Biobest, KAVB, LTO Glaskracht Nederland, NFO, Amaryllis growers and the cooperatives Bromelia and Cucumber.
Source: Wageningen University & Research
Receive the daily newsletter in your email for free | Click here
Other news in this sector:
- 2022-06-30 Biological fungicide protects against soil-borne diseases such as Pythium
- 2022-06-29 Beneficial insects are exposed to insecticides through honeydew
- 2022-06-27 Cucurbit powdery mildew control in 2022
- 2022-06-24 Spray boom full of traps to catch pests
- 2022-06-22 "Master's thesis on fungal structures in agricultural systems reads like a novel"
- 2022-06-21 Tropical Thrips species intercepted on plant material in Ontario
- 2022-06-16 Paul Allen’s Institute aids South Africa in combating locust swarms
- 2022-06-15 Protected agriculture standard: important information about dye test audits for growers
- 2022-06-15 US: APHIS seeks public comment on proposed changes for revising pest regulation lists
- 2022-06-14 Spider lilies can be used to warn of tospovirus infections
- 2022-06-14 SBM Life Science France awarded three Jard'innov Trophies
- 2022-06-10 Japanese knotweed is increasingly causing problems in the Netherlands
- 2022-06-10 Florist warned about the risks of nitrogen fertilizers
- 2022-06-10 ZeroTol 2.0 helps reduce resistance in IPM programs
- 2022-06-08 Michigan asks public to help prevent spread of invasive pests
- 2022-06-08 Chrysal and Syngenta Flowers introduce Largo
- 2022-06-07 Developing methods to determine heavy metal contamination in hemp
- 2022-06-02 Peony viruses
- 2022-06-01 Decision-making for disease control strategies in ornamental heather production
- 2022-06-01 Greenfly, whitefly, slugs, snails, vine weevils, eelworms, and many others are no longer deemed to be 'pests'