6 TURNIP – 6.194 - TROUBLES

 

ORGANIC FARMING COURSE AGRO-ECONOMY   

6 TURNIP – 6.194 - TROUBLES

  

The brassica family is notorious for the fighting number of pests and diseases which can attack the plants. The root-producing members are no exception. But in practice the troubles you are likely to encounter in the garden are very few.  Flea beetles is the only serious problem of the radish crop – turnips and swedes must face a few additional ones, including club roots, powdery mildew and soft rot. Gall weevil and cabbage root fly are occasionally a nuisance, but the root brassicas are generally much healthier than the leafy ones such as cauliflower and brussels sprouts.

Problems are:

1.    Turnip mosaic virus.

Prevention: Spray with insecticidal soap to control the greenfly which are the carriers of the disease.

2.     Soft rot

Prevention: Remove affected plants immediately. To avoid trouble next season, make sure the soil is well drained. Avoid over manuring. Practise crop rotation.

3.     Brown heart.

Prevention: If soil is known to be boron deficient, apply 1 oz borax per 20 sq. yards before planting – take care not to overdose.

4.     Black rot.

Prevention: Practise crop rotation. Make sure the soil is well drained.

 

KOZI YA KILIMO HAI KILIMO-UCHUMI

6 TURNIP – 6.194 - SHIDA

Familia ya brassica inajulikana kwa idadi kubwa ya wadudu na magonjwa ambayo yanaweza kushambulia mimea. Wanachama wanaozalisha mizizi sio ubaguzi. Lakini katika mazoezi shida unazoweza kukutana nazo kwenye bustani ni chache sana. Mende wa mende ndio tatizo kubwa pekee la mazao ya figili - turnips na swedes lazima zikabiliane na chache za ziada, ikiwa ni pamoja na mizizi ya klabu, koga ya unga na kuoza laini. Wadudu wa nyongo na nzi wa mizizi ya kabichi huwa kero mara kwa mara, lakini mizizi ya brassicas kwa ujumla ina afya zaidi kuliko ile ya majani kama vile cauliflower na brussels sprouts.

Matatizo ni:

1. Virusi vya Turnip mosaic.

Kinga: Nyunyiza kwa sabuni ya kuua wadudu ili kudhibiti nzi wa kijani ambao ndio wabebaji wa ugonjwa.

2. Kuoza laini

Kuzuia: Ondoa mimea iliyoathirika mara moja. Ili kuepuka shida msimu ujao, hakikisha udongo umevuliwa vizuri. Epuka kutumia mbolea kupita kiasi. Fanya mazoezi ya kubadilisha mazao.

3. Moyo wa kahawia.

Kinga: Ikiwa udongo unajulikana kuwa na upungufu wa boroni, weka borax 1 kwa yadi 20 za mraba kabla ya kupanda - kuwa mwangalifu usizidishe dozi.

4. Kuoza nyeusi.

Kinga: Fanya mazoezi ya kubadilisha mazao. Hakikisha udongo umetolewa vizuri.

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