Rice Hispa
The damage symptoms are seen as elongated, clear, feeding marks as white streaks of uneaten lower epidermis between the parallel leaf veins. Likewise, the presence of the insect confirms its damage.
A cultural control method that is recommended for the rice hispa is to avoid over fertilizing the field. Close plant spacing results in greater leaf densities that can tolerate higher hispa numbers. To prevent egg laying of the pests, the shoot tips can be cut. Clipping and burying shoots in the mud can reduce grub populations by 75-92%.
The larvae or grubs mine or tunnel inside the leaves as leaf miners. Then the larvae feed on the green tissues using their mandibulate mouthparts. During emergence, the adult beetle cuts its way out from the leaf. The adult insects are external feeders.
1 comment:
An insecticide may help with the pest problem.
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I work with frp in agriculture.
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