1. To study the spatial distribution pattern of major insect pests of rice in Navsari.

2. To study the role of major environmental factors on population the  buildup of major insects of rice in Navsari

Variance Mean Ratio :

If the distribution is random - i.e. can be modeled by the Poisson process
or its multidimensional analogs - then, the VMR is about 1.0. Larger
values (VMR >1.0) correspond to the existence of "clumps" - spatial or temporal clusters

Smaller values (VMR < 1.0) correspond to a
more-uniform-than-random distribution (often named "even",
"uniform") - i.e. mutual "avoidance" of events or objects in time or
space.

2. Exponent K :

3. Oher technique: if found appropriate like Lloyd's indices of mean
crowding (x*) and patchiness index (x * “x)

Observation to be recorded:

Major Insects of rice like Stem borer, rice case worm, horn caterpillar Gandhi bung and others depend on availability in various stages of crops along with standard metrological weeks

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