Friday, March 15, 2013

Crop Damage

Dr Abe V Rotor
Effect of extreme temperature change and occasional drizzle on tomato. Note nature of damage: uneven size and ripening, blister and crack which expose fruits to bacterial and fungus decay.   

Indian mango attacked by fruit fly (Dacus dorsalis). The eggs are inserted into the green fruit by a special ovipositor of the fly, a relative of the housefly. The larvae tunnel into the flesh causing the fruit to rot even before ripening.  
 Immature yellow ginger(Curcuma longa) dried up in prolonged storage.  Gabi (Colocasia esculenta) attacked by fungus under improper storage. The rule is to harvest only fully matured tuber, so with fruits. 
 Careless postharvest handling of banana results to injury predisposing it to fungal and bacterial attack. Atis (Anona squamosa)  infested by beetle borer larvae ends up with invasion of molds and bacterial rot. Note guava showing multiple injury by fruit fly (Dacus dorsalis), the same pest of mango, caimito, nangka, and other fruits.  

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