NSW Arbovirus Surveillance & Vector Monitoring Program
Ballina 1999-2000
Mosquito/Virus Results

Nearby Location

Tweed Heads

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News & Comments

Note that for mosquito numbers 0 - 50 mosquitoes = "Low", 51 - 100 = "Medium",
101 - 1,000 = "High", 1,001 - 10,000 = "Very High", >10,000 = "Extreme".

16/5/2000: Unusually 'high' numbers (467) were collected from Greenfield Road, with 253 Culex orbostiensis. North Creek Road trapped 'low' numbers.

18/4/2000: North Creek Road continues with 'high' numbers (179), which is around average. Culex sitiens (72) was the most common species.

10/4/2000: Numbers are 'high' from both sites, although around average. Greenfield Road trapped 563 mosquitoes, with 192 Coquillettidia linealis. North Creek Road collected 166 mosquitoes, with 36 Culex sitiens.

3/4/2000: The biggest numbers for this season were collected this week from Greenfield Road, with numbers around three times the average. 'Very high' (1076) mosquito numbers were trapped from Greenfield Road, with 858 Coquillettidia linealis. North Creek Road trapped 'high' numbers (146), with 75 Culex sitiens. Dalwood collected three mosquitoes.

27/3/2000: Numbers continued to climb and are around twice the average this week.  Greenfield Road collected 'high' numbers (886), with 459 Coquillettidia linealis. North Creek Road trapped 'high' numbers (318), with 151 Aedes funereus and 76 Culex sitiens. Dalwood trapped 8 mosquitoes.

20/3/2000: Mosquito numbers are well up this week, but still around half the average. 'High' numbers were collected from both sites. Greenfield Rd trapped 281 mosquitoes, with 200 Coquillettidia linealis. North Creek Road yielded 200 mosquitoes, with 122 Culex sitiens. Dalwood collected one Coquillettidia linealis.

15/3/2000: Numbers were 'low' from all sites.

7/3/2000: Numbers are up this week, but still well below average. Greenfield Road trapped 'medium' numbers (83), with 39 Culex orbostiensis. North Creek Rd had a 'high' collection (111), with 27 Aedes notoscriptus.

1/3/3000: Below average mosquito numbers continue. 'Low' numbers were trapped at Greenfield Rd. North Creek Road had a 'medium' collection (66), with 44 Culex sitiens.

24/2/2000: Well below average mosquito numbers continue. North Creek Rd had 'low' numbers. Dalwood also trapped 'low' numbers (4). 

15/2/2000: Numbers continue to be well below average. Greenfield Rd trapped 'high' numbers (204), with 71 Coquillettidia linealis. North Creek Rd also had a 'high' collection (160), with 91 Culex sitiens.

7/2/2000: Overall numbers are well below average. Greenfield Road had a 'high' collection (128), with 56 Coquillettidia linealis. A collection made from Dalwood yielded 'low' numbers. North Creek Rd had 'medium' numbers (62), with 28 Coquillettidia xanthogaster.

31/1/2000: Mosquito numbers are up. Greenfield Road had a 'high' collection (421), with 240 Coquillettidia linealis. North Creek Rd had 'low' numbers.

24/1/2000: Greenfield Rd had 'high' mosquito numbers (188), with 102 Coquillettidia linealis. North Creek Rd had 'low' numbers.

18/1/2000: Mosquito numbers were noticably down this week. Greenfield Road had a 'low' collection. 'Medium' numbers (69) were trapped from North Creek Rd, with 23 Aedes notoscriptus.

9/1/2000: Numbers were 'high' (350) from Greenfield Rd, with 123 Coquillettidia linealis. North Creek Rd had a trap failure.

4/1/2000: 'Medium' numbers were trapped from both sites. Greenfield Rd collected 94 mosquitoes, with 43 Coquillettidia linealis. North Creek Rd trapped 82 mosquitoes, with 45 Aedes funereus.

19/12/99: Greenfield Rd had 'medium' numbers (65), with 41 Numbers were low at North Creek Rd. 

14/12/99: Mosquito numbers were 'low' from both sites.

8/12/99: Mosquito numbers were 'low' from both sites.

2/12/99: 'Medium' numbers (74) were collected from Greenfield Rd, with 23 Coquillettidia linealis. North Creek Rd yeilded 'low' mosquito numbers. Numbers were below average for this week.

25/11/99: 'Medium' numbers (98) were trapped from Greenfield Rd, with 64 Aedes multiplex.   A 'high' collection was made from North Creek Rd, with 125 Aedes notoscriptus.

17/11/99: Greenfield Rd (Site 1) had 'high' numbers (150), with 65 Coquillettidia linealis. North Creek Rd (Site 2) collected 'high' numbers (144), with 45 Aedes funereus.

11/11/99: Greenfield Rd (Site 1) had 'high' numbers (133), with 86 Culex orbostiensis. North Creek Rd (Site 2) collected 'high' numbers (144), with 58 Aedes funereus.

5/11/99: Greenfield Rd (Site 1) had 'high' mosquito numbers (231), although most were freshwater breeding mosquitoes including Aedes multiplex (50) and Culex orbostiensis (85). North Creek Rd (Site 2) had 'medium' collections (94) with 34 Coquillettidia xanthogaster.

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