Pamba

Brown Stink Bug

Euschistus servus

Mdudu

Ponya zao lako

Piga picha

Angalia uchunguzi

Pata dawa

Pata programu ya Plantix

Kwa Ufupi

  • Stained bolls.
  • Shrunken seeds.
  • Young bolls drop off.
  • Wart like growths.
  • Reduced yield quantity and quality.
  • Broad, shield-shaped bodies, brown colored bugs.

Inaweza pia kupatikana kwenye

11 Mazao
Maharage
Pamba
Mahindi
Mtama
Zaidi

Pamba

Dalili

Stink bugs feed on the squares and bolls of cotton. They attack mainly older bolls which then are stained and matted superficially. Seeds of the attacked bolls are shriveled and bolls may not open. If young bolls are damaged, they may drop off. The external lesions are associated with wart like growths on the interior of the boll, more precisely on the inner carpal wall where penetration has occurred. Seed feeding may result in reduced cotton production and stained cotton near the feeding site, which is a clear loss in terms of quality. Stink bugs are also known to facilitate the infection of opportunistic boll rotting organisms.

Mapendekezo

Udhibiti wa Kiasili

Parasitic tachinid flies and wasps lay eggs into the eggs of stink bugs and their larvae later feed on the hatching maggots. Birds and spiders can also help to reduce infestation. The oil of Eucalyptus urograndis is toxic to the bugs and their nymphs.

Udhibiti wa Kemikali

Always consider an integrated approach with preventive measures together with biological treatments if available. Seed treatments with insecticides of the pyrethroids group may provide some control and avoid damage in seedlings. Foliar application of insecticides based on dicrotophos and bifenthrin can also help to control populations.

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Adults overwinter in protected areas such as ditch banks, fence rows, under boards and dead weeds, ground cover, stones, and under the bark of trees. They become active during the first warm days of spring when temperatures rise above 21°C. Normally the first generation develops on wild hosts, while the second generation typically develops on cultivated crops. Each female lays about 18 egg masses, averaging 60 eggs, over a period of over 100 days. Adults are strong fliers and will readily move between weeds and other alternate hosts.

Hatua za Kuzuia

  • Plant early to avoid peak populations.
  • Monitor the fields regularly for signs of the pest.
  • Make sure to rogue the weeds from the field.
  • Barriers between fields can help to reduce the migrations of the bug.
  • Clear the field of plant residues after harvesting.
  • No-tillage practices or the presence of mulch favors the risk of infestation.

Pakua Plantix