Carbamate and organophosphorus sprays as alternatives to DDT to control red-legged earth mites (Halotydeus destructor and Penthaleus major)

1965 ◽  
Vol 5 (16) ◽  
pp. 68 ◽  
Author(s):  
WE Wright
Keyword(s):  
Active Ingredient ◽  
Mite Species ◽  
Effective Control ◽  
Animal Products ◽  
Halotydeus Destructor ◽  
Mite Control ◽  
Organophosphorous Compounds ◽  
Low Volume

Four experiments, two conducted in 1962 and two in 1963, are described. Low volume applications of two carbamates, eight organophosphorous compounds, and a quinoxaline miticide were tested for their value in controlling the two species of red-legged earth mites, Halotydeus destructor (Tucker) and Penthaleus major (Duges) alongside the standard DDT treatment of four ounces active ingredient an acre. Two of the organophosphorous compounds, namely azinphos ethyl and 'Imidan' applied at half an ounce active ingredient an acre, were shown to give effective control of both mite species for at least five weeks and can now be recommended as alternative mite control treatments that would eliminate the risk of contamination of meat or animal products by undesirable residues. Since DDT at 2 oz active ingredient an acre gave very effective mite control, this lower dosage may- be useful in lessening the residue risk.

scholarly journals Strategies for control of the redlegged earth mite in Australia

2008 ◽  
Vol 48 (12) ◽  
pp. 1506 ◽  
Author(s):  
T. J. Ridsdill-Smith ◽  
A. A. Hoffmann ◽  
G. P. Mangano ◽  
J. M. Gower ◽  
C. C. Pavri ◽  
...  
Keyword(s):  
Control Strategies ◽  
Field Trials ◽  
Effective Control ◽  
Synthetic Pyrethroids ◽  
Halotydeus Destructor ◽  
Mite Control ◽  
Redlegged Earth Mite ◽  
Single Well ◽  
Plant Seedlings ◽  
Control Package

The redlegged earth mite, Halotydeus destructor, continues to be an intractable pest causing damage to most crop and pasture species in southern Australia. H. destructor feed on all stages of plants, but particularly damage seedlings in autumn. Research has aimed to develop new controls based on a better understanding of the biology and ecology of this pest. Chemicals remain the key tool to control H. destructor, despite the recent appearance of resistance to synthetic pyrethroids. A control package, Timerite, has been developed by which a single well-timed spray in spring can prevent H. destructor from developing diapause eggs. Field trials show this strategy provides effective control of H. destructor the following autumn, and protects plant seedlings, although mite populations build up again during winter. Non-chemical control strategies include grazing, the use of tolerant plants such as cereals, resistant legume cultivars and avoiding rotations where favourable host plants are available in the year before growing susceptible crops such as canola. Natural enemies can assist in mite control, and their numbers can be enhanced by methods including increasing landscape features like shelterbelts. Interspecific competition can occur between H. destructor and other pest mites, but the extent to which these interactions influence the structure of pest communities under different management regimes remains to be investigated.

Treatment of pastures with granular phorate to control the lucerne flea (Sminthurus viridis) and the red legged earth mite (Halotydeus destructor)

1963 ◽  
Vol 3 (10) ◽  
pp. 219
Author(s):  
MMH Wallace
Keyword(s):  
Population Density ◽  
Active Ingredient ◽  
Indirect Evidence ◽  
Effective Control ◽  
Halotydeus Destructor ◽  
Density Regulation

Ten per cent phorate ('Thimet') granules were broadcast on to pastures to control the lucerne flea, Sminthurus viridis (L.) and the red-legged earth mite, Halotydeus destructor (Tuck.). A rate of one ounce of active ingredient an acre gave effective control of both pests, principally by fumigant action. Biscirus lapidarius Kramer, a useful bdellid mite preying upon the lucerne flea, was reduced in numbers by this treatment. Rain during or immediately after application inhibited the fumigant action. Changes in population density after treatment provided indirect evidence of the mechanisms of density regulation in these pests.

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.

scholarly journals Mites affecting hen egg production: some considerations for Brazilian farms

2013 ◽  
Vol 43 (7) ◽  
pp. 1230-1237 ◽  
Author(s):  
Leandro do Carmo Rezende ◽  
Lucas Maciel Cunha ◽  
Cristina Mara Teixeira ◽  
Paulo Roberto de Oliveira ◽  
Nelson Rodrigo da Silva Martins
Keyword(s):  
Egg Production ◽  
Integrated Control ◽  
Mite Species ◽  
Economic Losses ◽  
Poultry Industry ◽  
Control Programs ◽  
Cultural Aspects ◽  
Mite Control ◽  
Mite Infestations ◽  
And Control

The poultry industry is characterized for its constant search for productivity and profitability, which are based on flock health status. Brazilian Commercial laying hens (Gallus gallus domesticus) have been impacted significantly by mite infestations. This review aims to compile the literature on the occurrence, economic losses, biology, epidemiology and control of mite species considered important for the Brazilian laying poultry industry. The national experience was compared with practices of other countries and a scarcity of studies on this subject in Brazil was evident. The poultry industry has prioritized the use of pesticides to control infestations with little regard for the adverse effects. In this context, the integrated control programs using several strategies simultaneously constitute the best alternative to mite control. Integrated control programs involve measures of chemical, physical and biological nature, as well as attention to cultural aspects. However, studies should be performed aiming at the development of new control methods, evaluating the adequacy of practices developed in other countries to the national reality.

THE CONTROL OF THE APPLE APHID ON DWARF APPLE TREES WITH BARK APPLICATIONS OF DIMETHOATE

1961 ◽  
Vol 41 (2) ◽  
pp. 407-412 ◽  
Author(s):  
D. P. Pielou
Keyword(s):  
Active Ingredient ◽  
Good Control ◽  
Basal Part ◽  
Effective Control ◽  
Single Application ◽  
Apple Trees ◽  
Emulsifiable Concentrate ◽  
Aphis Pomi ◽  
Wettable Powder ◽  
Excellent Control

Very effective control of the apple aphid, Aphis pomi DeG., on dwarf apple trees, has been obtained by two paintings of an undiluted emulsifiable concentrate of dimethoate (30 per cent active ingredient) on the basal part of the trunk of the tree. Approximately 2 millilitres are applied per tree, and application is made with a 1-inch paint brush around the trunk over a distance of approximately 12 inches. A single application in early July, at a time when the seasonal upsurge of aphids is beginning, gave excellent control for 3 to 4 weeks, even where conditions for reinfestation were favourable. A second application at the end of that period ensured full seasonal control. Almost equally good control was obtained by diluting the concentrate with an equal volume of water. At greater dilutions less effective control resulted. The use of a slurry made from dimethoate, 50 per cent wettable powder, in place of the emulsion, was reasonably effective but slower in action.

Low volume concentrate spraying for the control of the field cricket (Teleogryllus commodus)

1967 ◽  
Vol 7 (28) ◽  
pp. 472
Author(s):  
PR Birks
Keyword(s):  
New Zealand ◽  
Field Cricket ◽  
Effective Control ◽  
Alternative Treatments ◽  
Insecticide Residues ◽  
South Eastern ◽  
Teleogryllus Commodus ◽  
Important Pest ◽  
Low Volume

The field cricket, Teleogryllus commodus (Walker) is an important pest of black cracking soils of south-eastern mainland Australia and of New Zealand. Insecticidal control was unsatisfactory until dieldrin was introduced. Residue problems associated with the use of dieldrin on pastures led to a revival of investigations into alternative treatments. The low volume concentrate application of technical malathion by aircraft gave rapid and effective control when applied late in the season. As little as 6.5 fl oz of 96 per cent malathion, estimated to cost no more than $1.20 an acre, including application costs, reduced cricket populations by 94-95 per cent two to six days after spraying, providing quick, convenient, and economical control and avoiding undesirable insecticide residues. Further trials will be necessary to determine suitable applications earlier in the season.

Experiments on the control of the Lucerne flea (Sminthurus viridis (L) and the Red-Legged earth mite (Halotydeus destructor (Tuck.)) in pastures in Western Australia.

1954 ◽  
Vol 5 (2) ◽  
pp. 317 ◽  
Author(s):  
MMH Wallace
Keyword(s):  
Western Australia ◽  
Residual Effects ◽  
Maximum Efficiency ◽  
Halotydeus Destructor ◽  
The Earth ◽  
Highly Effective ◽  
Low Volume

Experiments with BHC, chlordane, and parathion against the lucerne flea (Sminhurus viridis (L.)) and the red-legged earth mite (Halotydeus destructor (Tuck.)) in pastures are described. All insecticides were applied by means of a low-volume boom spray delivering 5 gal per acre. BHC applied at the rate of 2 lb 50 per cent. dispersible powder per acre had no effect on the lucerne flea population but killed approximately 90 per cent. of the earth mites present. Chlordane applied a t the rate of ½ lb per acre achieved no control of either pest. Parathion applied at the rate of ¼ pt of 20 per cent. emulsion per acre gave practically 100 per cent. control of lucerne fleas. Its residual effects were negligible and fleas hatching from eggs laid prior to spraying were not harmed. Equally good immediate control was achieved by applications of parathion at one-half the above concentration. The addition of DDT to the spray ensured the destruction of all earth mites as well as the lucerne flea. DDT gave no evidence of control of the lucerne flea in previous experiments. The experiments show that parathion is a highly effective insecticide against the lucerne flea but for maximum efficiency it should be applied early in the season before any eggs have been laid. The toxicity of the parathion sprays to grazing stock is discussed.

Biological control of sciarid and phorid pests of mushroom with predatory mites from the genus Hypoaspis (Acari: Hypoaspidae) and the entomopathogenic nematode Steinernema feltiae

2004 ◽  
Vol 94 (2) ◽  
pp. 159-167 ◽  
Author(s):  
S. Jess ◽  
J.F.W. Bingham
Keyword(s):  
Biological Control ◽  
Biological Control Agent ◽  
Entomopathogenic Nematode ◽  
Predatory Mites ◽  
Mite Species ◽  
Control Agent ◽  
Steinernema Feltiae ◽  
Effective Control ◽  
Small Scale ◽  
Mushroom Compost

AbstractIn small-scale experiments, the predatory mites, Hypoaspis aculeifer (Canestrini) and H. miles Berlese, applied at 700 mites m−2, and the entomopathogenic nematode, Steinernema feltiae (Filipjev) applied at 3 × 10−6 nematodes m−2 controlled sciarids and phorids in mushroom compost and casing substrates. For both mite species, earliest application to the growing substrate following sciarid infestation reduced sciarid emergence. In contrast, later application of each biological control agent provided more effective control of phorid emergence. The behaviour of adult mites suggested that H. aculeifer were more positively geotactic than H. miles although both species could penetrate compost and casing substrates to a depth of 2–12 cm. A majority of S. feltiae nematodes resided at a depth of 2–4 cm in both substrate types. Independent application of H. aculeifer provided more comprehensive control of sciarids and phorids than the other biological agents studied, owing to its better dispersal within compost and casing, and ability to attack larvae of differing ages.

scholarly journals DOSES DE GLIFOSATO E TEMPERATURA DA CALDA DE APLICAÇÃO NO CONTROLE DE CAPIM BRAQUIÁRIA

2021 ◽  
Vol 35 (4) ◽  
pp. 468-475
Author(s):  
João de Deus Godinho Junior ◽  
José Márcio de Sousa Júnior ◽  
Renato Adriane Alves Ruas ◽  
Alberto Carvalho Filho ◽  
Pedro Ivo Vieira Good God
Keyword(s):  
Active Ingredient ◽  
Block Design ◽  
Effective Control ◽  
Application Technology ◽  
Temperature Variations ◽  
Randomized Complete Block Design ◽  
Suitable Temperature ◽  
Higher Temperature ◽  
Weeds Control ◽  
Urochloa Brizantha

DOSES DE GLIFOSATO E TEMPERATURA DA CALDA DE APLICAÇÃO NO CONTROLE DE CAPIM BRAQUIÁRIA   JOÃO DE DEUS GODINHO JUNIOR1, JOSÉ MÁRCIO DE SOUSA JÚNIOR1, RENATO ADRIANE ALVES RUAS1, ALBERTO CARVALHO FILHO1, PEDRO IVO VIEIRA GOOD GOD1   1Instituto de Ciências Agrárias, Universidade Federal de Viçosa, Rodovia MG-230 - Km 7, Zona Rural, CEP: 38810-000, Rio Paranaíba - Minas Gerais, Brasil, [email protected], [email protected], [email protected], [email protected], [email protected].   RESUMO: As variações de temperatura podem influenciar na distribuição e penetração de princípios ativos de herbicidas nas plantas. Assim, é necessário definir a temperatura mais adequada para cada aplicação, pois, temperaturas baixas podem inibir absorção de certos produtos e interferir na efetividade do controle e temperaturas mais elevadas podem causar perdas por deriva e reduzir a eficácia do tratamento. Objetivou-se avaliar o efeito de doses de glifosato e a temperatura da calda de aplicação no controle de capim braquiária. Empregou- se o delineamento em blocos casualizados, com tratamentos em esquema fatorial 5 x 4 x 4, sendo: cinco temperaturas de calda (5, 20, 35, 50 e 65 °C), quatro doses do glifosato (0, 0,54, 1,08 e 1,62 kg i.a. ha-1) e quatro períodos de avaliação (7, 14, 21 e 28 dias após a aplicação). Foram realizadas três repetições, totalizando 240 unidades experimentais constituídas de uma área de 10 m² (5 x 2 m) formada com Urochloa brizantha cv. Piatã. Houve efeito significativo apenas das interações duplas, sendo observado maior efeito da temperatura nos tratamentos que receberam menores doses do herbicida. Concluiu-se que a elevação da temperatura da calda de glifosato melhora o controle efetivo de U. brizantha, principalmente, nas menores doses.             Palavras-chave: dessecação de plantas daninhas, eficiência de controle, herbicidas, tecnologia de aplicação.   GLYPHOSATE DOSES AND TEMPERATURE OF APPLICATION SYRUP IN CONTROL OF PALISADE GRASS   ABSTRACT: Temperature variations can influence the distribution and penetration of the active ingredient in the plant. However, it is necessary to define the most suitable temperature for each treatment, since lower temperatures may inhibit the absorption of the products and those higher can cause losses due to drift. This study aimed to evaluate the effect of glyphosate doses and the application syrup temperature on the control of palisade grass. Was employed a randomized complete block design with treatments in a factorial 5 x 4 x 4, being five syrup temperatures (5, 20, 35, 50 and 65 °C), four doses of glifosato (0, 0.54, 1.08 and 1.62 kg ha-1) and four evaluation periods (7, 14, 21 and 28 days after application). Three replicates were performed, totaling 240 established experimental units of 10 square meters in size (5 x 2 m) formed with Urochloa brizantha cv. Piatã. There was an effect in double interactions, and observed higher temperature effect in treatments with lower doses of herbicide. It was concluded that the increase in glifosato syrup temperature improvement effective control of U. brizantha mainly in smaller doses.     Keywords: desiccation of weeds, control efficiency, herbicides, application technology.

scholarly journals BIOLOGICAL PEST CONTROL WITH CONTINUOUS GREENHOUSE CULTURE

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1101b-1101
Author(s):  
Anthony J. D'Angelo ◽  
James Quinn
Keyword(s):  
Spider Mite ◽  
Effective Control ◽  
Encarsia Formosa ◽  
Biological Pest Control ◽  
Introduced Predators ◽  
Aphid Control ◽  
Mite Control ◽  
Natural Predator ◽  
Insect Predator ◽  
Minute Pirate Bug

A strategy for controlling pests with biological control was sought for production of salad greens and herbs in a nutrient film technique (NFT) growing system. A case study was initiated in October 1989 using a one half hectare greenhouse range (1988 construction) with no past or present synthetic insecticide use. Problematic pests were aphids and thrips. A natural predator/pest cycle (NPC) area was established (5% of total greenhouse area with potted herbs on benches) to provide an area for predators to establish and reproduce. Introduced predators, which successfully reproduced in the greenhouse, were Apidoletes aphidimyza (aphid control), Amblyseius macKenzie, and A. cucumeris (thrip control), Encarsia formosa (whitefly control), and Phyoseiulus persimilus (two spotted spider mite control), Naturally occuring predators of importance included a wasp parasitoid of aphids (Hymenoptera) and an insect predator, the minute pirate bug (Hemipters, Anthocoridae), which feeds on thrips and aphids.Two flying predators of aphids (A. aphidimyza and the wasp parasitoid) dispersed well from the NPC area and provided effective control. The technique of applying the thrips predators, a slow moving mite to flats shortly before transplanting provided good dispersal on all transplants. The time for effective control by the predator was 4 to 6 weeks. Effective control was observed in chives but not shorter cycle crops (3 to 5 weeks average). Immature minute pirate bugs were also observed in the chives assisting in control. Effective spider mite control was accomplished 2 to 3 weeks after the release of P. persimills into infested area. Whitefly populations have been effectively controlled by E. formosa.

Sign in / Sign up

Export Citation Format

Share Document