Insecticides for the control of dieldrin-resistant banana weevil borer, Cosmopolites sordidus Germar

1977 ◽  
Vol 17 (86) ◽  
pp. 499 ◽  
Author(s):  
WE Wright
Keyword(s):  
Active Ingredient ◽  
New South ◽  
New South Wales ◽  
Field Trials ◽  
Effective Control ◽  
Cosmopolites Sordidus ◽  
Banana Weevil ◽  
South Wales ◽  
Surrounding Soil

Field trials were carried out in the Brunswick River district of New South Wales from 1971 to 1975 to evaluate insecticides against dieldrin-resistant banana weevil borer, Cosmopolites sordidus Germar. Effective control was obtained by spraying the bases of plants and surrounding soil to a radius of 30 cm in spring and autumn with pirimiphos-ethyl and chlorpyrifos emulsions at 2.24 kg active ingredient ha-1 (1.12g per plant) per application. Chlordecone dust, pirimiphos-ethyl granules and chlorpyrifos powder sprinkled by hand at 2.8 kg ha-1 a.i. (1.42 g per plant) per application also gave effective control and could be used where water is unavailable.

scholarly journals Limited Sustained Local Transmission of HIV-1 CRF01_AE in New South Wales, Australia

Viruses ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 482 ◽  
Author(s):  
Francesca Di Giallonardo ◽  
Angie N. Pinto ◽  
Phillip Keen ◽  
Ansari Shaik ◽  
Alex Carrera ◽  
...  
Keyword(s):  
Hiv Transmission ◽  
New South ◽  
New South Wales ◽  
Incidence Rates ◽  
Effective Control ◽  
South Wales ◽  
Immunodeficiency Virus ◽  
Hiv 1 ◽  
Local Transmission

Australia’s response to the human immunodeficiency virus type 1 (HIV-1) pandemic led to effective control of HIV transmission and one of the world’s lowest HIV incidence rates—0.14%. Although there has been a recent decline in new HIV diagnoses in New South Wales (NSW), the most populous state in Australia, there has been a concomitant increase with non-B subtype infections, particularly for the HIV-1 circulating recombinant form CRF01_AE. This aforementioned CRF01_AE sampled in NSW, were combined with those sampled globally to identify NSW-specific viral clades. The population growth of these clades was assessed in two-year period intervals from 2009 to 2017. Overall, 109 NSW-specific clades were identified, most comprising pairs of sequences; however, five large clades comprising ≥10 sequences were also found. Forty-four clades grew over time with one or two sequences added to each in different two-year periods. Importantly, while 10 of these clades have seemingly discontinued, the remaining 34 were still active in 2016/2017. Seven such clades each comprised ≥10 sequences, and are representative of individual sub-epidemics in NSW. Thus, although the majority of new CRF01_AE infections were associated with small clades that rarely establish ongoing chains of local transmission, individual sub-epidemics are present and should be closely monitored.

Chemical control of Heliothis armiger (Hubner) in sweet corn

1981 ◽  
Vol 21 (109) ◽  
pp. 231 ◽  
Author(s):  
JT Hamilton ◽  
WA Muirhead
Keyword(s):  
Active Ingredient ◽  
Chemical Control ◽  
Sweet Corn ◽  
New South ◽  
New South Wales ◽  
South Wales ◽  
Screening Trial

Four trials were conducted at Griffith, New South Wales for the control of the corn ear worm, Heliothis armiger, in sweet corn. A screening trial, where sprays were applied at 50% silking and 7 days later, showed that the pyrethroids permethrin and fenvalerate were the most effective chemicals. The insecticides used (g active ingredient ha-1) and the percentage of cobs damaged in each treatment were as follows: permethrin 100- 15%; fenvalerate 100- 17%; methomyl 450-22%; sulprophos 720-25%; methomyl 340-30%; monocrotophos 800-33%; CGA 15324 750-34%; endosulfan 740-39%; acephate 750-39%; chlorpyrifos 750-55%. Permethrin and fenvalerate were also found to be effective at rates of 50 and 75 g a.i. ha-1. Applications during the tasselling and early silking stages were more effective than sprays during the later silking stages.

Control of grasshoppers (Phaulacridium vittatum) by ultra-low volume aerial application of technical maldison

1968 ◽  
Vol 8 (34) ◽  
pp. 631 ◽  
Author(s):  
M Casimir
Keyword(s):  
New South ◽  
New South Wales ◽  
Field Trials ◽  
Application Rate ◽  
Aerial Application ◽  
Normal Field ◽  
Treated Area ◽  
South Wales ◽  
Low Volume ◽  
Aerial Spraying

Field trials investigating ultra-low volume applications of undiluted technical maldison by aircraft against dense populations of Phaulacridium vittatum Sj�stedt (wingless grasshopper) are described. In February 1965 an application rate of 8.2 fl oz an acre gave 90-95 per cent reduction of grasshopper populations on a property on the northern tablelands of New South Wales. A further trial in November 1965, using rates of 4.6 and 5.6 fl oz per acre, gave similar results for each rate-70 per cent reduction of the population one day after spraying, rising to 80-85 per cent within eleven days. Some aspects of a large aerial spraying campaign conducted from October to December 1965 are also described. More than 150,000 acres were treated with maldison at the rate of 6.3 fl oz an acre. Detailed observations of the campaign spraying were made on a single property as well as general surveys of the whole treated area. A minimum application rate of 8.0 fl oz maldison an acre is suggested for normal field usage against P. vitiatum.

Relationship between climate and relative performance of cotton in New South Wales

1986 ◽  
Vol 37 (1) ◽  
pp. 23 ◽  
Author(s):  
NJ Thomson
Keyword(s):  
New South ◽  
New South Wales ◽  
Field Trials ◽  
Maximum Temperature ◽  
Total Rainfall ◽  
Growing Seasons ◽  
South Wales ◽  
Rate Maximum ◽  
Dry Conditions ◽  
The Mean

Cumulative day-degrees, total rainfall and the mean daily values for evaporation rate, maximum temperature, minimum temperature and radiation for a period of 200 days from 1 October to 18 April were used to characterize the climates of cotton-growing seasons at Narrabri (30�S.), N.S.W. Yields (expressed as percentages of standards) of some cultivars included in field trials in cotton-growing districts of New South Wales, were then regressed on these climatic indices. In a number of cases strong, significant linear associations of performance with one or more of the indices were found. Such cultivars were either more or less advantaged by warm, dry conditions than the standards, and vice versa for cool, wet conditions. The implications of these results in studies of genotype x environmental interaction are discussed.

Socio-economic and biological impact of the feral pig in New South Wales: An overview and alternative management plan.

1987 ◽  
Vol 9 (2) ◽  
pp. 96 ◽  
Author(s):  
PH O'Brien
Keyword(s):  
New South ◽  
New South Wales ◽  
Cost Effective ◽  
Buffer Zone ◽  
Management Plan ◽  
Effective Control ◽  
Multiple Use ◽  
Biological Impact ◽  
South Wales ◽  
Feral Pig

Feral pigs are widely distributed in Australia and have increased their range despite extensive control efforts. They pose a management dilemma because they are simultaneously an agricultural pest, endemic and exotic disease hazard, environmental liability, export commodity and recreational resource. These attributes and values vary with place, time and observer perceptions. In this paper, I briefly review the socio- economic and biological impact of the feral pig in New South Wales. An alternative multiple use management plan is presented, which minimizes costs and conflict by integrating the requirements for cost-effective control of agricultural damage and exotic disease with the commercial and recreational values of the feral pig. The proposal is based on: local ('buffer zone') control near susceptible enterprises; sustainable yield harvesting; regulated recreational hunting; and appropriate exotic disease contingency plans.

Yield performance of tall fescue (Festuca arundinacea) populations on the Northern Tableland of New South Wales

1975 ◽  
Vol 15 (74) ◽  
pp. 391 ◽  
Author(s):  
JMA Schiller ◽  
A Lazenby
Keyword(s):  
Festuca Arundinacea ◽  
Dry Matter ◽  
New South ◽  
New South Wales ◽  
Field Trials ◽  
Total Production ◽  
Pasture Production ◽  
Mediterranean Populations ◽  
South Wales ◽  
Cutting Interval

Nine populations of Festuca arundinacea were grown in monoculture in two field trials on a black earth soil at Armidale, New South Wales during the period late 1967 to early 1970. There were four cutting treatments (at 2, 4, 8 and 16 week intervals) in both experiments and in trial 2 half the plots were irrigated. Seasonal and total herbage production were determined for two periods, each of forty-eight weeks duration, and tillering patterns were studied in trial 2. Differences were demonstrated in the seasonal and total production of the populations. Those selected from temperate environments were higher yielding in spring, summer and autumn and produced more total dry matter during the year than did those from the Mediterranean region ; however, in both experiments these latter yielded some 10 kg ha-1 day-1 more than the temperate fescues during the second winter. One cultivar-Goar's fescue-performed in a manner intermediate between the temperate and Mediterranean populations. Total dry matter yields were reduced when the cutting interval was decreased; in contrast, tiller numbers increased with frequency of cutting. The results suggest considerable potential value of Mediterranean fescues for winter pasture production on the Northern Tablelands of New South Wales.

Additional tests on the effects of pesticides on cryptic species of blue oat mite (Penthaleus spp.) and the redlegged earth mite (Halotydeus destructor)

2000 ◽  
Vol 40 (5) ◽  
pp. 671 ◽  
Author(s):  
M. T. Robinson ◽  
A. A. Hoffmann
Keyword(s):  
Cryptic Species ◽  
New South ◽  
New South Wales ◽  
Mite Species ◽  
Effective Control ◽  
Individual Species ◽  
Halotydeus Destructor ◽  
Tolerant Species ◽  
South Wales ◽  
Lambda Cyhalothrin

Earth mites (Halotydeus destructor, Penthaleus spp.) are important pests of crops and pastures in southern Australia during the winter and spring. A recent study showed that control of these mites is complicated by different responses of species to several pesticides, with one cryptic species (Penthaleus falcatus) being particularly tolerant. In this study, earth mites were tested against 4 other chemicals registered for mite control (alpha-cypermethrin, phosmet, chlorpyrifos and lambda-cyhalothrin) in an attempt to identify useful pesticides to counter control failures. Furthermore, an isolated population of an undescribed cryptic Penthaleus species (P. sp. x) from northern New South Wales was tested for its response to 8 pesticides. Species responded differently to all pesticides. Halotydeus destructor was usually the least tolerant species except in the case of phosmet where P. major was the least tolerant species. For alpha-cypermethrin and lambda-cyhalothrin, tolerance of all Penthaleusspecies was similar or higher than that of H. destructor. Penthaleus falcatus had a relatively higher tolerance to phosmet than all other species. The response of P. sp. x (New South Wales) to chlorpyrifos was inconsistent between trials and the response of this species to lambda-cyhalothrin was complex. Penthaleus sp. x (New South Wales) was generally more tolerant than H. destructor but not as tolerant as P. falcatus. The results highlight the fact that mite species need to be identified when considering control options and suggest that effective control recommendations need to be developed for each individual species.

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