[6] As the infestation develops symptoms include: weak stems, damage to growing parts, prevention of flowering and dead hearts.
[7] Planting early can avoid serious infestation and application of nitrogen (commercial product, manure or compost) can enhance the crop's tolerance to an attack.
[6] Nitrogen in the soil can also be increased by rotating maize and sorghum with a non-host legume crops e.g. cowpea.
This can also prevent pest build-up in the field [5][6][7][8] The Ministry of Agriculture in Zambia, who are partners of the CABi-led programme, Plantwise recommend breaking the stems by ploughing or harrowing after harvest to expose caterpillars to natural enemies and extreme weather which can limit the pest the following season.
[9] Furthermore, Napier grass produces smells that can attract the stem borer's natural enemies.
Napier grass is a feed crop for animals, and its root system helps prevent soil erosion.
[3][4][5][8] Due to variable regulations around (de-)registration of pesticides, specific chemical control methods may differ between countries.
Text taken from Plantwise Factsheets for Farmers: Tephrosia spray against maize stalk borer, Dennis Mooya, CABI.
Text taken from Plantwise Factsheets for Farmers: Neem sprays against African stalk borer in Maize, Brian Chisunka, CABI.
Text taken from PMDG: Stalk borer in maize and Sorghum - Zambia, Demian Mabote Ndalamei, CABI.
Text taken from Plantwise Factsheets for Farmers: Intercrop maize with cowpea against stalk borer, Liberatus W. Msasa, Happiness C. Lopa & Jubilant Mwangi, CABI.
Text taken from PMDG: African maize stalk borer - Tanzania, Jeremiah Sembosi, Joyce Bakengi & Jubilant Mwangi, CABI.
Text taken from Plantwise Factsheets for Farmers: Pull and push crops against borers in maize, Albert Mate, CABI.