| Summary: | The insect species diversity which is associated on strawberry plants needs
to be managed properly. Herbivorous insects can cause damage and play as
potential pests. Strawberry plants communities consisted by various species of
insects that build up the structure of the community. Keystone and dominant
species which is found in the food chain forms a regulatory mechanism of bottomup
and top-down. The aim of this study was to determine the diversity and
dominance of insects in organic (10 m
2
) and conventional (10 m
2
) strawberry
farms in Kopeng (7
o
23� 29� S dan 110
o
25� 3� E and 1450 m asl). This study was
conducted in August to November 2013. The collection of insects methods are
direct capture and using flying net, yellow traps and light traps. The Insects that
caught in organic and conventional strawberries farm are consists of 7 Order,
Family 35, 60 Genus and 62 Species. The diversity indices is higher in the organic
(1.39±0.57) than the conventional (0.53±0.30) strawberry farms. The dominance
indices is lower in organic (0.40±0.23) than the conventional (0.70±0.20)
strawberry farms. The community similarity indices are 0506. The temperature in
September was (23,56 °C), October (22,67 °C) and November (22,46 °C). The
humidity in September was (59,33%), October (72, 56%) and November
(75,24%). The light intensity in September was (13610 lux), October (18520 lux),
and November (31490 lux). The wind velocity in September was (12.25 km/h),
October (12 km/h), and November (13.5 km/h). The percentage of strawberry
plants vegetative, flowering, and fruiting in organic strawberry farms are 67.94%,
15.63% and 16.44%, in conventional are 71.40%, 14.16%, and 14.44 %. Insects
that dominate both area are Chaitosiphon fragaefolii, whiteflies, Spodoptera
litura, Stenotus sp. and Camponatus sp. The percentage of flowering and fruiting
strawberries are higher 1.47% and 2% in organic strawberry farms by using insect
- proof screen.
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