The Use of Insecticidal Seed Dressings as a Means of Decreasing a Population of Wheat Bulh Fly <i>(Leptohylemyia coarctata</i>(Fall.))

Dixon, G. M.; Rogerson, J. P.

doi:10.1111/j.1365-3059.1972.tb01744.x

Cited by 1 publication

(4 citation statements)

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“…In our trials ethion, fonofos and athidathion were only slightly less effective than chlorfenvinphos. Ethion has been tested on several occasions with similar results to ours (Cessac & Guillot, 1967;Cole & Soper, 1967;Dixon, 1967;Griffiths, 1968;Maskell, 1970;, 1973Dixon & Rogerson, 1972).…”

Section: Insecticide Performancesupporting

confidence: 54%

“…The better performance of ethion on late sowings has been reported by Cessac & Guillot (1967), Cole & Soper (1967) and Dixon & Rogerson (1972) and of chlorfenvinphos by Heath (1967) and Maskell (1970). Earlier work (Gough & Woods, 1954;Gough et af., (1961) had established that seed treatments in general were more effective on wheat sown after mid-October.…”

Section: Efsect Of Date Of Sowing Upon Insecticide Performancementioning

confidence: 67%

“…He referred to the inherent phytotoxicity risks of seed treatments, their hazards to grain-eating birds and other wildlife, and the large numbers of wheat bulb fly larvae which survived treatment and subsequently pupated. His comments were presumably based upon trials done largely in north-east England where seed treatments have occasionally performed badly (Bevan, 1965;Dixon & Rogerson, 1972;Oakley, 1977;1980).…”

Section: O N C L U S I O N Smentioning

confidence: 99%

“…In the past twenty years, attention has turned to organophosphates, carbamates and synthetic pyrethroids as substitutes for the organochlorines for wheat bulb fly control and the results of many screening tests done in eastern counties of England have been published (Bevan, 1965;Brown & Maskell, 1965;Catling, 1967;Catling & Cook, 1967;Cole & Soper, 1967;Dixon, 1967;Dixon & Rogerson, 1972;Griffiths, 1968;Griffiths et al, , 1974Griffiths et al, , 1975Griffiths et al, , 1976Griffiths, Lord & Scott, 1970;Griffiths, Scott, Maskell & Roberts, 1969;Makepeace, , 1967Maskell, 1967Maskell, , 1970, 1969Scott, 1981). Similar trials elsewhere in the United Kingdom have been reported by McKinlay (1977,1979,1981~, b) and on the European mainland by Toldaev (1969), Wetzel & Ramson (1974) and de Clercq (1978).…”

Section: Introductionmentioning

confidence: 99%

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Chemical control of wheat bulb fly (Delia coarctata) attacking winter wheat in Eastern England, 1969–1981

Maskell¹,

Gair²

1986

Annals of Applied Biology

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SUMMARY Dry powder, liquid and microencapsulated formulations of organophosphate and synthetic pyrethroid insecticidal seed treatments were tested as possible alternatives to the standard organochlorine seed treatments for autumn‐sown wheat in mineral and organic soils heavily infested with wheat bulb fly eggs and (subsequently) larvae. Retention of insecticides on the seed coat varied from 40% to 120% of the target dose; it was usually good when microencapsulated formulations were used. Chlorfenvinphos, fonofos, isofenphos and triazophos, each applied at 2‐0 g a.i./kg seed, were phytotoxic, the symptoms varying from a slight delaying effect upon germination to an adverse effect upon grain yield. Chlorfenvinphos at 0–2 to 2‐0 g a.i./kg seed was consistently effective against wheat bulb fly larvae in both mineral and organic soils. Athidathion 0–8 g a.i./kg, carbophenothion 1–2 g a.i./kg, ethion 1–7 g a.i./kg and fonofos (microencapsulated formulations) at 1‐0 or 2‐0 g a.i./kg were also effective in mineral and organic soils. Of the synthetic pyrethroids tested as seed treatments, permethrin gave excellent results in mineral soils at 1‐0 g a.i./kg or in synergised formulations at 0–12 or 0–24 g a.i./kg but was disappointing in organic soils. In a single comparison of seed treatments applied to wheat sown early (14 October) and late (20 November), chlorfenvinphos was effective at both sowing dates whereas athidathion, ethion and pirimiphos‐ethyl gave better results in late‐sown wheat. A single trial compared deep with shallow sowing of treated seed. Most insecticides performed better on shallow‐sown wheat, but chlorfenvinphos was equally effective against the pest at both sowing depths. Most insecticides restricted the numbers of larvae entering host plants but had little or no subsequent effect upon larval survival within attacked shoots. Fonofos and isofenphos, and to a lesser extent chlorfenvinphos, seed treatments additionally killed many larvae within plant shoots.

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