The Diversity And Abundance Of Leafaud Planthopper (Auchenorrhyncha: Hemiptera) Along With Weeds In Rice Field Ecosystem In South Rantau Of Labuhan Batu Regency
ABSTRACT: The aim
of this research
is to find
out the diversity,
abundance, and dominance
of leafaud planthopper (Auchenorrhyncha: Hemiptera)
along with the
types of weeds
grow in rice
field ecosystem in
South Rantau of Labuhan Batu
regency. This research was conducted by using purposive random sampling
by using insect net. The collection of hopper was done by swinging the insect
net for 50 times that took place in north, south, middle, east and south so
that the amount of the sampli ng was 250 swings. The result of this research
showed that there were 6 types of rice pests in vegetation period until
stublade field in south Rantau of Labuhan
Batu regency. They were
: Nilaparvata lugens,
Nephotettix sp, Cofana
spectra, Recilia dorsalis, Thaia
sp, Cicadulina bipunctata. The highest abundance was found in Nilaparvata
lugens with 407 individuals, Nephotettix sp with 32 individuals, Cofana spectra
with 38 individuals, Recilia dorsalis with 26 individuals, Thaia
sp with 19
individuals, and Cicadulina
bipunctata with only
1 individual, with
low diversity index, it was 0,1075. While the weeds found in south
Rantau of Labuhan Batu regency were 5 types,
they were Cyperus
iria ,Cyperus rotundus,Papalum distichum,
Alternanthera philoxeroides, Cyperus pilosus. The highest density was
found in Cyperus iria weed, with total 25%, whilw the lowest density was found in
Papalum distichum with
total only 10%.
The highest presence
frequency was found in
Cyperus iria, Cyperus rotundus,
Papalum distichum, Alternanthera philoxeroides with total 20%, while the lowest
presence frequency was
found in Cyperus
pilosus with total
16%. The highest
dominance was found
in Cyperus rotundus with total
23.34%, while the lowest dominance was found in
Cyperus pilosus with total 15.83%,
and the highest important value index was found in Cyperus rotundus with total 64.24%, while the lowest important
value index was found in Papalum distichum with total 52.69%.
Penulis: NIRWANA FAZRI HARAHAP
Kode Jurnal: jpbiologidd150353