NSW Arbovirus Surveillance & Vector Monitoring Program

Fords Bridge 1999-2000 Mosquito/Virus Results

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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".

20/5/2000: Numbers are 'high' (439) this week, with 280 Aedes sapiens.

13/5/2000: 'Very high' numbers (1420) were trapped this week, with 447 Anopheles annulipes and 269 Culex annulirostris.

24/4/2000: Mosquito numbers are declining bu still 'high' (219). Aedes theobaldi (76) was the most commonly collected mosquito.

26/4/2000: Two arboviruses were isolated from mosquitoes collected on the 4/4/2000. There was one Ross River from Culex annulirostris and one Sindbis from Aedes theobaldi.

17/4/2000: 'High' numbers (347) continue to be collected, with 116 Aedes eidsvoldensis.

18/4/2000: Two arbovirus isolates (one each of Ross River and Sindbis virus) were made from mosquitoes collected on the 28/3/2000. Both isolates were from Aedes eidsvoldensis.

4/4/2000: Numbers have declined, with a 'high' collection (706). Culex annulirostris (285) and Aedes theobaldi (281) were the most common species.

28/3/2000: 'Extreme' numbers (10375) were trapped this week, with 7569 Aedes eidsvoldensis, 829 Culex annulirostris and 813 Aedes theobaldi.

22/3/2000: A 'very high' collection (1934) was made this week from Fords Bridge, with floodwater Aedes dominating the collection including 1333 Aedes eidsvoldensis and 193 Aedes sagax.

6/3/2000: There were two collections this week from Fords Bridge at the 'Vee', both yielding 'high' numbers. The collection from the 5/3 had 242 mosquitoes, with 143 Aedes alternans as well as a mixture of other floodwater Aedes species. The collection on the 6/3 trappeed 222 mosquitoes, with 137 Culex annulirostris.

14/2/2000: 'Low' mosquito numbers (20) were trapped this week.

30/1/2000: A collection made from "Yalcarley", Whittaker's Paddock, trap 102 mosquitoes, with 71 Culex annulirostris.

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