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Regulation of sawflies in organic orchards (BIOFRUITNET Practice Abstract)

{Tool} Regulation of sawflies in organic orchards (BIOFRUITNET Practice Abstract). Creator(s): Adolphi, Christina and Oeser, Niklas. Issuing Organisation(s): FÖKO - Fördergemeinschaft Ökologischer Obstbau. Biofruitnet Practice Abstract, no. 023. (2022)

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Document available online at: https://orgprints.org/44937


Summary in the original language of the document

A combined strategy of different direct and indirect actions can lead to a long-term reduction of the apple saw-fly population in the orchards.
Practical recommendation
The need for regulation of the pest relates to the flower set strength. Regulation should be considered in years with weak flower sets or high infestation pressure.
REGULATION OF THE APPLE SAW-FLY
Indirect measures
1. Monitoring
• Only for apple: Use predictive models (RIMpro, Fruitweb) to predict flight start (based on temperature development).
• Use white sticky traps (Picture 1) before blooming to monitor first appearance and flight time.
• Screen 100 flower clusters visually on egg-laying stitches on the Flower bottom (Pct.2). Depending on the abundance of flowers, the threshold is 1-4.
2. Mass-trapping
• Apply White sticky tapes temporarily in the Orchards before flowering to catch the sawflies (150-250/ha). (see how in PA 24 (apple) and PA25 (pear) and the Video in the Links section).
Caution: Research is still ongoing with promising results so far. Check with regional advisory services or the Biofruitnet Network for new findings.
3. Other indirect measures
• Remove infested fruits manually in spring (reduces primary- and secondary infestation).
Direct measures
4. Use of Quassia or NeemAzal T/S
• Check the permission status of the products in your country.
• Apply between full bloom (BBCH 65) and petal fall (BBCH 67, see Links section).
o Quassia: Use a high water application rate (1000 l/ha) and add a wetting agent.
o NeemAzal-T/S: Effect is postponed; first apple gets damaged. Damage to the second and third fruit is diminished. Caution on pears, check the susceptibility of varieties on phytotoxicity!


EPrint Type:Practice tool
What problem does the tool address?:Sawflies, such as apple sawfly (Hoplocampa testudinea) and Pear sawfly (H. brevis), are major pests in organic fruit production which can cause massive yield losses. Regulation is possible by only a few measures.
What solution does the tool offer?:Combining different preventive strategies and direct measures can help to control the pest.
Country:Germany
Type of Practice Tool:Practice abstracts
Keywords:Plant protection, Pest control, Biological pest control, Apple, Pear, Sawfly
Agrovoc keywords:
Language
Value
URI
English
plant protection
http://aims.fao.org/aos/agrovoc/c_5978
English
pest control
http://aims.fao.org/aos/agrovoc/c_5726
English
biological pest control
http://aims.fao.org/aos/agrovoc/c_330635
English
apples
http://aims.fao.org/aos/agrovoc/c_541
English
pears
http://aims.fao.org/aos/agrovoc/c_5645
English
Tenthredinidae
http://aims.fao.org/aos/agrovoc/c_29943
Subjects: Crop husbandry > Production systems > Fruit and berries
Crop husbandry > Crop health, quality, protection
Research affiliation: European Union > Horizon 2020 > Biofruitnet
Germany > Fördergemeinschaft Ökologischer Obstbau - FÖKO
European Union > Organic Farm Knowledge
Horizon Europe or H2020 Grant Agreement Number:862850
Related Links:https://organic-farmknowledge.org/tool/44937, https://biofruitnet.eu, https://organic-farmknowledge.org/tool/44938, https://twitter.com/farm_knowledge/status/1618179008352628737, https://www.facebook.com/organicfarmknowledge/posts/pfbid0RyynHfVZUiJ331BjxVxbdZqAQa2n7J2zGAjkeEhsZCJay7A7h8WGXJnvt3P5Extsl
Project ID:ofk
Deposited By: Basler, Andreas
ID Code:44937
Deposited On:24 Dec 2022 09:21
Last Modified:02 May 2024 10:31
Document Language:English, German/Deutsch
Status:Published

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