218
Gene R. DeFoliart
Table 8.6. Applications of Ground and Aerial ULV Adulticides
Dose: actual
Percent reduction
Investigator(s) ,
insecticide/
(posttreatment interval
locality, target species
Insecticide
acre a
in parentheses)
Mount et al. (1972),
Malathion
0.03~.04 Ib (G)
94 (1-2 hr)
17 (24 hr)
Arkansas
Naled
0.0175~.021
97 (1-2 hr)
68 (24 hr)
Ps. confinnis
Chlorpyrifos
0.011~.015
86 (1-2 hr)
88 (24 hr)
Mount and Lofgren (1967), Naled
0.05 Ib (A)
65 (6 hr)
17 (24 hr)
Florida
0.1
88 (6 hr)
36 (24 hr)
Ae. taeniorhynchus
0.2
94 (6 hr)
78 (24 hr)
Ae. sollicitans
Fenthion
0.05 Ib (A)
79 (6 hr)
60 (24 hr)
0.1
72 (6 hr)
84 (48 hr)
0.2
75 (6 hr)
77 (48 hr)
Mount and Pierce (1974),
Naled
0.02 Ib (G)?
81-94 (30-45 min)
Florida
Ae. taeniorhynchus
Mount et al. (1978),
Propoxur
0.020 Ib (G)
56 (45 min)
Florida
0.038
72 (45 min)
Ae. taeniorhynchus
Naled
0.033
85 (45 min)
Brooke et al. (1974),
Bioresmethrin
3.0 g (G)
92 (24 hr)
Grand Cayman
1.5
89 (24 hr)
Ae. taeniorhynchus
• A, aerial application; G, ground application.
Fenthion as a conventional spray gave excellent control at 0.5 to 0.2 lb/acre for
6 hr and good residual control for 48 hr at the highest rate, 0.2Ib/acre; the ULV
treatment gave only fair control at 6 hr but good residual at 24 and 48 hr (Table
8.6). Poor results with malathion were attributed to resistance. In later tests with
naled UL V in residential sections of Sugarloaf Key, Horida, Mount and Pierce
(1974) obtained 81-94% reductions (average 86%) 30-45 min after applications
at the rate of 0.02 lb/acre (Table 8.6). Posttreatment counts at 12 or 24 hr,
depending on time of application, revealed a rapid reinfestation, thus necessitating repeated applications for satisfactory control.
Sutherland et al. (1978) obtained, at best, only fair results from aerial
applications of naled and malathion against Ae. sollicitans in New Jersey. The
treated area consisted of mixed forest and fields with sparse shrub and ground
cover. With naled at 1 oz/acre, they obtained a reduction greater than 60% one
day after application only 52% of the time and noted an increase 22% of the
time. Comparable data from malathion at 3 ozlacre were 40% and 20%, respectively.
Propoxur, not currently registered for ULV aerosol use, was compared with
naled by Mount et al. (1978) against Ae. taeniorhynchus at Crescent Beach,
Gene R. DeFoliart
Table 8.6. Applications of Ground and Aerial ULV Adulticides
Dose: actual
Percent reduction
Investigator(s) ,
insecticide/
(posttreatment interval
locality, target species
Insecticide
acre a
in parentheses)
Mount et al. (1972),
Malathion
0.03~.04 Ib (G)
94 (1-2 hr)
17 (24 hr)
Arkansas
Naled
0.0175~.021
97 (1-2 hr)
68 (24 hr)
Ps. confinnis
Chlorpyrifos
0.011~.015
86 (1-2 hr)
88 (24 hr)
Mount and Lofgren (1967), Naled
0.05 Ib (A)
65 (6 hr)
17 (24 hr)
Florida
0.1
88 (6 hr)
36 (24 hr)
Ae. taeniorhynchus
0.2
94 (6 hr)
78 (24 hr)
Ae. sollicitans
Fenthion
0.05 Ib (A)
79 (6 hr)
60 (24 hr)
0.1
72 (6 hr)
84 (48 hr)
0.2
75 (6 hr)
77 (48 hr)
Mount and Pierce (1974),
Naled
0.02 Ib (G)?
81-94 (30-45 min)
Florida
Ae. taeniorhynchus
Mount et al. (1978),
Propoxur
0.020 Ib (G)
56 (45 min)
Florida
0.038
72 (45 min)
Ae. taeniorhynchus
Naled
0.033
85 (45 min)
Brooke et al. (1974),
Bioresmethrin
3.0 g (G)
92 (24 hr)
Grand Cayman
1.5
89 (24 hr)
Ae. taeniorhynchus
• A, aerial application; G, ground application.
Fenthion as a conventional spray gave excellent control at 0.5 to 0.2 lb/acre for
6 hr and good residual control for 48 hr at the highest rate, 0.2Ib/acre; the ULV
treatment gave only fair control at 6 hr but good residual at 24 and 48 hr (Table
8.6). Poor results with malathion were attributed to resistance. In later tests with
naled UL V in residential sections of Sugarloaf Key, Horida, Mount and Pierce
(1974) obtained 81-94% reductions (average 86%) 30-45 min after applications
at the rate of 0.02 lb/acre (Table 8.6). Posttreatment counts at 12 or 24 hr,
depending on time of application, revealed a rapid reinfestation, thus necessitating repeated applications for satisfactory control.
Sutherland et al. (1978) obtained, at best, only fair results from aerial
applications of naled and malathion against Ae. sollicitans in New Jersey. The
treated area consisted of mixed forest and fields with sparse shrub and ground
cover. With naled at 1 oz/acre, they obtained a reduction greater than 60% one
day after application only 52% of the time and noted an increase 22% of the
time. Comparable data from malathion at 3 ozlacre were 40% and 20%, respectively.
Propoxur, not currently registered for ULV aerosol use, was compared with
naled by Mount et al. (1978) against Ae. taeniorhynchus at Crescent Beach,