Mnanasi : Tofauti kati ya masahihisho
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==Visumbufu vya mnanasi==
[[Kijidudu|Vijidudu]] vinavyomelea mnanasi huchangia kuleta hasara kubwa kote duniani katika uzalishaji wa mananasi<ref name="Sipes et al., 2005">{{cite book
| author=Sipes, B.S., E.P. Caswell, J. Chen Sarah & W. Apt
| editor=M. Luc, R.A. Sikora & J. Bridge (eds.)
| title=Plant-Parasitic Nematodes in Subtropical and Tropical Agriculture
| chapter=Nematodes parasites of pineapple
| edition=2nd Edition
| pages=709-731
| year=2005
}}
</ref>. [[Spishi]] zaidi ya mia moja za [[nematodi]] zimeripotiwa kuingia [[mzizi|mizizi]] ya mnanasi<ref name="Sipes et al., 2005"></ref> na kutatiza matumizi ya madini na maji kwa mmea na kusababisha mimea kudumaa. Aina za vijidudu hivi ambavyo huadhiri mavuno ya mananasi sana ni spishi za nematodi kama vile ''Meloidogyne javanica'', ''M. incognita'', ''Rotylenchulus reniformis'' na ''Pratylenchus brachyurus''<ref name="Sipes & Schmitt, 2000">{{cite journal
| author=Sipes, B.S. and D.P. Schmitt
| title=Rotylenchulus reniformis damage threshold on pineapple
| year=2000
| journal=Acta Horticulturea
| volume=529
| pages=239-246
}}
</ref><ref name="Sipes et al., 2005"></ref>.
''Helicotylenchus dihystera'' na ''Criconemella ornata'' (kwa [[Kiing.]] Ring nematode) pia hupatikana sana kwa [[shamba|mashamba]] ya mananasi ingawa huwa hawasababishi uharibifu wowote uonekanao<ref
| author=Raski, D. J. and Krusberg, L.R.
Huko [[Hawaii]], upungufu wa kiasi kikubwa wa uzalishaji wa mananasi umeripotiwa kutokana na uharibifu au maambukizo ya nematodi. Katika mashamba ya mananasi ya [[Queensland]], huko [[Australia]], ''M. javanica'' ameripotiwa kuwa spishi aliye na uharibifu zaidi kuliko aina zote za vijidudu vinavyomelea mananasi<ref> Stirling, G.R., (1993)., Nematodes. In Broadley, RH, Wassman, RC and Sinclair, E (eds) Pineapple: Pests and Disorders. Queensland Department of Primary Industries, Brisbane, pp: 21-29.</ref>.▼
| editor=W.R. Nickle (ed.)
| year=1984
| chapter=Nematode parasites of grapes and other small fruits
| title=Plant and insect nematodes
| publisher=Mercel Dekker inc.
| location=New York
| pages=457-506
}}
</ref>
<ref name="Stirling, 1993">{{cite book
| author=Stirling, G.R.
| year=1993
| chapter=Nematodes
| editor=Broadley, RH, Wassman, RC and Sinclair, E (eds.)
| title=Pineapple: Pests and Disorders
| publisher=Queensland Department of Primary Industries
| location=Brisbane
| pages=21-29
}}
</ref>.
▲Huko [[Hawaii]], upungufu wa kiasi kikubwa wa uzalishaji wa mananasi umeripotiwa kutokana na uharibifu au maambukizo ya nematodi. Katika mashamba ya mananasi ya [[Queensland]], huko [[Australia]], ''M. javanica'' ameripotiwa kuwa spishi aliye na uharibifu zaidi kuliko aina zote za vijidudu vinavyomelea mananasi<ref
==Picha==
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