study on effect of moon light on efficiency of light trap.in GKVK, University of agricultural sciences Bengaluru.

2. Effect of moon light on efficiency of
light trap
•
Chidananda.R
PALB-4098
Vikas G.D
PALB-4110

3. OBJECTIVE

4. Work done
• Installation of light traps near plant breeding
plot (mercury & CFL-trap) on full moon day,
new moon day & normal day.
• Collection of trapped insects.
• Classification of trapped insects to their
respective orders.
• Counting of classified insects in each order.
• Comparison of trapped insects w.r.t traps &
fullmoon day, new moon day & normal day.

5. Work done.
Sl.no Day Date
1. Full moon day 06-12-14
2. Normal day 11-12-14
3.
New moon day(Near mango
orchard)
22-12-14
4. New moon day( near breeding plot) 20-01-15

6. Keeping the trap during the new moon day
CFL-trap Mercury trap

7. Insects trapped in the CFL-light trap

8. Insects trapped in the CFL-light trap

9. Insects trapped in the mercury-light
trap

10. Classification of trapped insects into
respective orders.

11. • Photos of classified insect orders: only few
were selected for documentary purpose.

12. Trapped lepidopteran insects in CFL-
light trap

13. Trapped coleopteran insects in CFL-
light trap

14. Most abundant trapped beetle in CFL-
trap

15. Insects belongs to Orthoptera in
mercury trap

16. Insects belongs to lepidoptera in
mercury trap

17. Insects belongs to coleoptera in
mercury trap

18. Insects belongs to dermoptera in
mercury trap

19. Insects belongs to diptera in mercury
trap

20. Only one insect belongs to neuroptera (green lace
wing) trapped in mercury light trap

21. Insects belongs to hymenoptera in
mercury trap

22. Total insect orders.
• Apterygota
Protura Collembola
Thysanura Diplura
• Exopterygota
Ephemeroptera Odonata Plecoptera
Grylloblatodea Orthoptera Phasmida
Dermaptera Embioptera Dictyoptera
Isoptera Zoraptera Psocoptera
Mallophaga Siphunculata Hemiptera
Thysanoptera
• Endopterygota
Neuroptera Coleoptera Strepsiptera
Mecoptera Siphonaptera Diptera
Lepidoptera Trichoptera Hymenoptera
Only Highlighted orders are found in traps

23. Mercury trap(new moon day) 22-12-14
Sl.
no
Orders No of trapped
insects/
order
1. Odonata(drag
onfly)
03
2. Lepidoptera(s
pingid moths-
5)
22
3. Hymenoptera(
honey bees-2)
06
4. Dermoptera 09
5. Diptera 04
6. Coleoptera 08
7. hemiptera 05
Highest-lepidoptera
Lowest-odonata

24. CFL-trap(new moon day) 22-12-14
Sl.
no
Orders No of trapped
insects/
Order
1. Dictyoptera 02
2. Lepidoptera 86
3. Coleoptera(1 dung
beetle)
219
4. Hemiptera (7
Nezara viridula)
243
5. Dermoptera 37
6. Hymenoptera 31
7. Diptera (syrphid-
1)
45
Highest-hemiptera
Lowest-dictyoptera

25. Mercury trap-(new moon day) 20-01-15
Sl.
no
Orders No of
insects/or
der
1. Hymenopte
ra
16
2. Lepidoptera 19
3. Neuroptera 1
4. Coleoptera 8
5. Diptera 76
6. hemiptera 85
Highest hemipterans trapped
Lowest-neuroptera

26. CFL-trap(new moon day) 20-01-15
Sl.
no
Orders No of
insects/
order
1. Hymenoptera 17
2. Lepidoptera 117
3. Dermoptera 32
4. Diptera 28
5. Hemiptera 92
6. Coleoptera 182
Highest-coleoptera.
Lowest-Hymenoptera

27. Installing light trap on normal day 11-12-14

28. Mercury trap-normal day 11-12-14
Sl
.
n
o
Orders No of
trapped
insects/order
1. Diptera 22
2. Lepidoptera 18
3. Coleoptera 61
4. Hemiptera 19
5. Dermoptera 18
6. Hymenopter
a
07
Highest-coleoptera
Lowest-hymenoptera

29. CFL trap-(normal day 11-12-14)
Sl.
no
Orders No of trapped
insects/order
1. Diptera 41
2. Lepidoptera 56
3. Coleoptera 175
4. Hemiptera 183
5. Dermoptera 29
6. Hymenoptera 27
Highest- Hemiptera
Lowest- Hymenoptera

30. Installing light trap on full moon day 6-12-14

31. Mercury trap(full moon day 6-12-14)
Sl.
no
Orders No of trapped
insects/order
1. Diptera 43
2. Lepidoptera 37
3. Coleoptera 58
4. Hemiptera 47
5. Dermoptera 12
6. Hymenoptera 14
7. Orthoptera 01
Highest-coleoptera
Lowest-orthoptera

32. CFL trap(full moon day 6-12-14)
Sl.
no
Orders No of trapped
insects/order
1. Diptera 52
2. Lepidoptera 64
3. Coleoptera 48
4. Hemiptera 32
5. Dermoptera 16
6. Hymenoptera 12
7. Orthoptera 02
Highest – lepidoptera
Lowest - orthoptera

33. Mercury trap-new moon day CFL-trap-new moon day
Mercury trap-new moon day) CFL-trap new moon day
Comparision b/w different days & traps

34. Mercury trap-normal day CFL trap-normal day
Mercury trap - full moon day CFL trap -full moon day
Comparision b/w different days & traps

35. Sl.no Day Highest & lowest no of insects trapped in the order
CFL-trap Mercury trap
Highest Lowest Highest Lowest
1. New moon day
(22-12-14)
(Near mango
orchard)
Hemiptera Dictyoptera lepidoptera Odonata
2. New moon day
(20-01-15)
(near breeding
plot)
Coleoptera Hymenoptera Hemiptera Neuroptera
3. Normal day Hemiptera Hymenoptera Coleoptera Hymenoptera
4. Full moon day Lepidoptera Orthoptera Coleoptera orthoptera

36. Trap efficiency
Sl.
no
Day Trap No. of insects Total no. of
insects
1. New moon day Mercury 57 660
CFL 603
2. New moon day Mercury 205 673
CFL 468
3. Normal day Mercury 145 656
CFL 511
4. Full moon day Mercury 212 438
CFL 226

37. Comparing trap efficiency b/w different days

38. Conclusion
• Among the 30 orders only 7 orders were
trapped in light trap.
• More no. of insects trapped in UV-light trap
than mercury trap.
• Efficiency of trap (CFL & mercury put together)
i.e. Highest no.of insects trapped in new moon
day>normal day>full moon day.