scholarly journals Non-Chemical Control of Some Important Pests of Sweet Cherry

2008 ◽  
Vol 48 (4) ◽  
pp. 503-508 ◽  
Author(s):  
Radoslav Andreev ◽  
Hristina Kutinkova ◽  
Konstantinos Baltas
Keyword(s):  
Bacillus Thuringiensis ◽  
Chemical Control ◽  
Sweet Cherry ◽  
Fourth Instar ◽  
Sesame Oil ◽  
Black Cherry ◽  
Paecilomyces Fumosoroseus ◽  
Hyphantria Cunea ◽  
Potassium Soap ◽  
Fall Webworm

Non-Chemical Control of Some Important Pests of Sweet CherrySome non-chemical insecticides were tested for efficacy of control of fall webworm,Hyphantria cunea(Drury), and of cherry weevil,Rhynchites auratus(Scop.) in the laboratory and black cherry aphid,Myzus cerasi(Fabr.) under field conditions. Hendreson & Tilton formula was applied for evaluation of efficacy. NeemAzal T/S (azadirahtin) at the concentration 0.5% and Naturalis (Beauveria bassiana) used at 0.2% or 0.3% have shown the best results against black cherry aphid. Good results were also obtained with Pyrethrum FS (pyrethrin + sesame oil + soft potassium soap) used at 0.05% or 0.1%, with NeemAzal T/S at 0.3%, PreFeRal WG (Paecilomyces fumosoroseus) at 0.2% and with Naturalis at 0.1%. The effect of PreFeRal WG, applied at 0.1% was unsatisfactory. Against the fourth instar larvae of fall webworm, excellent results were noted for Pyrethrum (0.05% and 0.1%) and Naturalis (0.1% and 0.2%). Very good effects were also obtained with the BMP 123WP (Bacillus thuringiensis), used in concentration of 0.1%. NeemAzal T/S - 0.5% had still good, albeit lower, efficacy. Against the cherry weevil only Pyrethrum FS was tested. This insecticide resulted in a very good efficacy, when used at the concentration 0.1% and still satisfactory - at 0.05%.

EFFECTS OF LEAF AGE AND POSITION ON LARVAL PREFERENCES OF THE FALL WEBWORM, HYPHANTRIA CUNEA (LEPIDOPTERA: ARCTIIDAE)

1979 ◽  
Vol 111 (3) ◽  
pp. 381-383 ◽  
Author(s):  
Pedro Barbosa ◽  
Jane Greenblatt
Keyword(s):  
New England ◽  
Host Species ◽  
Leaf Age ◽  
Prunus Serotina ◽  
Black Cherry ◽  
Hyphantria Cunea ◽  
Number Of Species ◽  
Fall Webworm

The fall webworm Hyphantria cunea Drury is a polyphagous lepidopteran which has been recorded on over 200 host species. In New England, although it occurs on a large number of species, the most frequently exploited host is black cherry, Prunus serotina Ehrh.

scholarly journals THE ACTIVE STRAINS OF ENTOMOPATHOGENIC BACTERIA BACILLUS THURINGIENSIS FROM INSECTS OF NATURE POPULATIONS

2007 ◽  
Vol 5 ◽  
pp. 172-178
Author(s):  
L.N. Kuznetsova ◽  
G.N. Konoplyova
Keyword(s):  
Bacillus Thuringiensis ◽  
Biochemical Properties ◽  
Hyphantria Cunea ◽  
Entomopathogenic Bacteria ◽  
Potato Beetle ◽  
Fall Webworm ◽  
Physiological And Biochemical ◽  
Cabbage Moth ◽  
Fall Webworm Moth ◽  
Physiological And Biochemical Properties

Strains of Bacillus thuringiensis effecient against leaf-chewing insects of Lepidoptera and Diptera genus have been isolated from insects of nature populations. Their physiological and biochemical properties and the spectrum of entomopathogenic action were studed. The activity of pathogens against the larva of potato beetle (Leptinotarsa decemlinaeta, order Coleoptera), caterpillars of cabbage moth (Mamesta brassicae, order Lepidoptera) and fall webworm moth (Hyphantria cunea Dryri, order Lepidoptera) of small age grade was around 74,7-100 %. These strains were added to bacterial entomopathogene collection of the Institute of agricultural microbiology of UAAS as perspective for elaboration of biopreparations for plants protection against leafchewing insects.

Plasticity of nutrient accumulation patterns in diapausing fall webworm pupae

2021 ◽  
pp. 1-8
Author(s):  
Lvquan Zhao ◽  
Wei Wang ◽  
Ying Qiu ◽  
Alex S. Torson
Keyword(s):  
The Body ◽  
Diapause Induction ◽  
Energy Reserve ◽  
Short Photoperiod ◽  
Induction Phase ◽  
Energy Reserves ◽  
Hyphantria Cunea ◽  
Survival And Reproduction ◽  
Fall Webworm ◽  
Diapause Incidence

Abstract The accumulation of nutrients during diapause preparation is crucial because any lack of nutrition will reduce the likelihood of insects completing diapause, thereby decreasing their chances of survival and reproduction. The fall webworm, Hyphantria cunea, diapause as overwintering pupae and their diapause incidence and diapause intensity are regulated by the photoperiod. In this study, we test the hypothesis that photoperiod influences energy reserve accumulation during diapause preparation in fall webworm. We found that the body size and mass, lipid and carbohydrate content of pupae with a short photoperiod during the diapause induction phase were significantly greater than those of pupae with a relatively short photoperiod, and the efficiency of converting digested food and ingested food into body matter was greater in the short-photoperiod diapause-destined larvae than the relatively short-photoperiod diapause-destined larvae. We also observed higher lipase and amylase activities in short-photoperiod diapause-destined larvae relative to the counterparts. However, no obvious difference was found in protein and protease in the pupae with a short photoperiod during the diapause induction phase and short-photoperiod diapause-destined larvae compared with the counterparts. Therefore, we conclude that the energy reserve patterns of diapausing fall webworm pupae are plastic and that short-photoperiod diapause-destined larvae increase their energy reserves by improving their feeding efficiency and increase their lipid and carbohydrate stores by increasing the lipase and amylase activities in the midgut.

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