Czarnobai De Jorge, Bruna

Gross, Jürgen

English

JKI Open Journal Systems (Julius Kühn-Institut)

11th Young Scientists Meeting 2018, Braunschweig, Germany, November 14-16 Czarnobai De Jorge & Gross NANO-PUSH - Development of nanofibers emitting insect repellents as part of innova-tive push-and-pull strategies for control of fruit tree phytoplasma vectors Bruna Czarnobai De Jorge and Jürgen Gross Julius Kühn Institute, Institute for Plant Protection in Fruit Crops and Viticulture, Dossenheim E-mail of corresponding author: bruna.czarnobai@julius-kuehn.deFruit trees of the family Rosaceae are se-riously affected by phytoplasmas of the apple proliferation group. Phytoplasmas are pathogens of agriculturally important plants, including pears, apples, plums and citrus causing a wide variety of symp-toms that range from mild yellowing to death of infected plants. Phytoplasma disease is caused by a group of special-ized phloem-limited bacteria and are transmitted between plants, mainly, by insect vectors. Some of these phytoplasmas are on the list of pests recommended for regulation by the European and Mediterranean Plant Protection Organization (EPPO), like ‘Candidatus Phytoplasma mali’, ‘Ca. P. pyri’, and ‘Ca. P. prunorum’ the mosteconomically important disease in stonefruits, European Stone Fruit Yellows(ESFY) causing crop losses of infectedpeach and apricot trees.Insects of the genus Cacopsylla (formerly Psylla) are known as the major responsi-ble vectors and it was shown recently that they use chemical cues for orienta-tion and host identification.  To overcome the spreading of this dis-eases, especially the transition to healthy plants, several techniques using volatile substances as insects attractive and re-pellents and also new system for the de-livery of such substance are being stud-ied.  Thus, nanotechnology offers great prom-ises for delivery systems as an innovative tool. Nanofibers can be used to deliver both attractive compounds, and insect repellents. Through nanoencapsulation chemicals are slowly but efficiently re-leased to a particular host plant for insect pest control.  This combined application of insect at-tractant (pull component) and repellents (push component) connected to a practi-cal push-and-pull control method will re-duce the use of chemical pesticides and ensure economic, sustainable and long term cultivation of pome and stone fruit in Germany and throughout Europe. Nanoformulations for push-and-pull sys-tems can prevent the migration and pro-liferation of psyllids in orchards, resulting in a strong reduction of new infections by phytoplasmas.  Systems for dispensing repellent sub-stances in crop protection are without precedent and the use of nanotechnol-ogy in agrobiotechnological applications are in focus of the latest research.  The objective of this study is the develop-ment of an innovative push-and-pull strategy for the management of phyto-plasma vectoring psyllids by using nano-fibers for emitting repellent compounds.  64 Berichte aus dem Julius Kühn-Institut 200

NANO-PUSH - Development of nanofibers emitting insect repellents as part of innovative push-and-pull strategies for control of fruit tree phytoplasma vectors

https://ojs.openagrar.de/index.php/BerichteJKI/article/download/10890/9956

NANO-PUSH - Development of nanofibers emitting insect repellents as part of innovative push-and-pull strategies for control of fruit tree phytoplasma vectors

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