Con­gress packa­ge 18

Heal­ing power from the bal­c­o­ny

Chris­tia­ne Den­zel

Chris­tia­ne Den­zel

Hover­flies on the bal­c­o­ny: pol­li­na­tors, aphid hun­ters, sur­vi­val artists

Sin­ce 1997, Chris­tia­ne Den­zel, a trai­ned gar­de­ner and land­scape gar­de­ner, has been the owner of the Bio­land nur­sery and natu­ral food Brei­te Wies‘, 20 km abo­ve Lake Con­s­tance in Emmin­gen-Lip­tin­gen. Through her vege­ta­ble nur­sery, the topic of „pol­li­na­ting insects“ is clo­se to her heart and she has been offe­ring lec­tures and work­shops on this sub­ject for many years, as well as pro­vi­ding advice on bio­di­ver­si­ty. As a trai­ned natur­opath, her­ba­list and farm edu­ca­tor, she inspi­res adults as well as child­ren and young peo­p­le and also imparts know­ledge vivid­ly through num­e­rous books. She is also the 1st chair­wo­man of the „Bau­ern­gar­ten und Wild­kräu­ter­land Baden“ asso­cia­ti­on. She spends two days a week in schools tea­ching about bio­di­ver­si­ty. She draws on over 20 years of expe­ri­ence with school clas­ses and kin­der­gar­ten groups as well as sea­so­nal cour­ses in her nur­sery, mea­dows and forests. In 2024, she began trai­ning bio­di­ver­si­ty edu­ca­tors at two „sta­te uni­ver­si­ties“ in Baden-Würt­tem­berg. The next Spe­cia­list semi­nar on bio­di­ver­si­ty edu­ca­ti­on will start in Janu­ary 2027. 

Lec­tu­re con­tent:

Honey bees, bum­ble bees and other wild bees are won­derful and inva­luable: tog­e­ther they take care of almost 50 % of flower pol­li­na­ti­on.
But who actual­ly does the rest?

Flies, beet­les and but­ter­flies share the remai­ning 50 % — a fasci­na­ting varie­ty that you could actual­ly talk about for hours. 
Hover­flies are a par­ti­cu­lar­ly important, but often unde­re­sti­ma­ted group.

As true fly­ing acro­bats, they often hover in the air, chan­ge direc­tion at light­ning speed and need ple­nty of ener­gy to do so. 
This is pre­cis­e­ly why they are among the most effec­ti­ve pol­li­na­tors of all — some­thing that many peo­p­le are not even awa­re of. Also, that hover­flies are respon­si­ble for a lar­ge part of the pol­li­na­ti­on of a group of nati­ve „super­foods“!

But hover­flies can do much more: the lar­vae of many spe­ci­es con­su­me lar­ge quan­ti­ties of aphids, others clean sta­g­nant water or car­ry out clean-up work in cow­sheds. 
And what do hover­flies actual­ly do in win­ter? Let us sur­pri­se you!

Immer­se yours­elf in the ama­zing world of hover­flies tog­e­ther with the bio­di­ver­si­ty edu­ca­tor — right on our door­step and on our own bal­c­o­ny.

You can look for­ward to it!

Chris­tia­ne Den­zel, Halb­prak­ti­ke­rin mit lang­jäh­ri­ger Erfah­rung in der natur­na­hen Bal­kon­gärt­ne­rei, gibt in die­sem Bei­trag eine fas­zi­nie­ren­de Ein­füh­rung in die Welt der Schweb­flie­gen und erklärt, war­um die­se klei­nen Insek­ten als Bestäu­ber und natür­li­che Blatt­laus­jä­ger auf dem Bal­kon unver­zicht­bar sind. Sie beleuch­tet den Begriff der Bio­di­ver­si­tät in sei­nen drei Dimen­sio­nen – gene­ti­sche Viel­falt, Arten­viel­falt und Lebens­raum­viel­falt – und macht deut­lich, wie eng das Leben auf dem Bal­kon mit dem gro­ßen Gan­zen der Natur ver­bun­den ist. Anhand eige­ner Bil­der aus ihrer Gärt­ne­rei, in der rund 60 ver­schie­de­ne Kul­tu­ren im Jahr wach­sen, zeigt sie ein­drucks­voll, wie viel­fäl­tig und leben­dig selbst ein klei­ner Grün­raum sein kann. Ihr Appell rich­tet sich an alle: Jeder Mensch mit einem Fens­ter­brett, einem Bal­kon oder einer Ter­ras­se trägt Ver­ant­wor­tung und kann durch die rich­ti­gen Pflan­zen aktiv zur Arten­viel­falt bei­tra­gen. Ob Anfän­ger oder erfah­re­ner Bal­kon­gärt­ner – mit etwas Wis­sen und Begeis­te­rung lässt sich jeder Bal­kon und jeder Kübel in eine blü­hen­de Oase ver­wan­deln, die nicht nur dem eige­nen Wohl­be­fin­den dient, son­dern auch Schweb­flie­gen, Wild­bie­nen und ande­ren Tie­ren ein wert­vol­les Zuhau­se bie­tet.

Web­sites

Books

Overview of books by biodiversity expert Christiane Denzel
Overview of books by biodiversity expert Christiane Denzel
Overview of books by biodiversity expert Christiane Denzel
Overview of games to promote biodiversity by biodiversity expert Christiane Denzel
Orga­nic bal­c­o­ny
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Insects support ecological gardening in small spaces (balcony, terrace, windowsill, allotment).

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