Possible Control of Some Insects by Killing the Males

Stafford, E. M.

doi:10.1093/jee/40.2.278a

Cited by 4 publications

(8 citation statements)

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“…According to Stafford (1949), control of olive scale in California prior to development of effective treatment with parathion was rather difficult and unsatisfactory in some cases. Tent fumigation with HeN gas for olives, and oil sprays for both olives and deciduous fruits had been used.…”

Section: Distribution In Californiamentioning

confidence: 99%

“…July, 1962] Huffaker, Kennett, Finney: Olive Scale 553 Another important point relative to the fecundity of the females is whether or not they are fertilized. Stafford (1947) inferred from observations and experiments that use of DDT to kill the males of this scale caused a lack of mating and the resulting females formed no eggs but instead remained non-gravid and formed abnormal, enlarged scale coverings. Under conditions encountered in this study this has not been a significant factor.…”

Section: Life History and Ecologymentioning

confidence: 99%

“…Regarding the differential success of males and females, or the two sexes combined, on fruits of olives or other parts of the tree, the data indicate a varied pattern. Stafford (1947) reported that most of the females are found on the stems. Our data support his conclusion to some extent, but we did find a substantial percentage of females on the leaves and still larger numbers on the fruits.…”

Section: Life History and Ecologymentioning

confidence: 99%

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Biological control of olive scale,Parlatoria oleae(Colvée), in California by importedAphytis maculicornis(Masi) (Hymenoptera: Aphelinidae)

Huffaker¹,

Kennett²,

Finney³

1962

Hilg

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Section: Distribution In Californiamentioning

confidence: 99%

Section: Life History and Ecologymentioning

confidence: 99%

Section: Life History and Ecologymentioning

confidence: 99%

See 1 more Smart Citation

Biological control of olive scale,Parlatoria oleae(Colvée), in California by importedAphytis maculicornis(Masi) (Hymenoptera: Aphelinidae)

Huffaker¹,

Kennett²,

Finney³

1962

Hilg

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“…Overwintering occurs as fertilized adult females, although a small portion of the population can overwinter at the second stage (Huffaker et al 1962). Adult males are required for breeding (Stafford 1947). Adult female lay a maximum of 100 eggs, the laying lasts 2-3 weeks (Huffaker et al 1962).…”

Section: Geographic Distribution Chrysomphalus Dictyospermi Is Cosmomentioning

confidence: 99%

The Inventory of Scale Insects (Hemiptera, Coccoidea) Associated With Olive Tree in North of Tunisia

gharbi

2020

Preprint

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Background: This study was realized for more than four years (from 2014 to 2018) in olive groves of northern Tunisian governorates. Scale insect samples were collected from leaves, stems and fruits.Results: An annotated list of 22 scale insect species has been recorded. These species divided into 4 families. The family Diaspididae is the most species-rich, with 14 species in 9 genera; Coccidae contains 4 species in 3 genera; Pseudococcidae contains 3 species in 3 genera; and Asterolecaniidae contains 1 species in 1 genus.Conclusions: This paper contains 3 species recorded for the first time in the Tunisian fauna: Saissetia coffeae (Walker), Diaspidiotus ostreaeformis (Curtis) and Lepidosaphes conchiformis (Gmelin).

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“…This and subsequent experiments have demonstrated conclusively that mating is necessary for the production of progeny. Stafford (1947) reported the formation of a similar accessory scale covering by unmated females of Pawlatoria oleae (ColveC), the occurrence of females outside this covering and the necessity of mating for the production of progeny. This is apparently the only other scale where the production of an accessory covering as a consequence of delayed mating has been reported.…”

Section: Duration Of Stagesmentioning

confidence: 99%

Life History and Sex Determination in the Diaspine Scale,Pseudaulacaspis pentagona(Targ.) (Coccoidea)

Bennett

Brown

1958

Can Entomol

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The increasing body of knowledge about the armored scales is beginning to reveal manv unique aspects in the life cycles of these highly specialized insects. Such information is not only of value to the entomologist and those concerned with the control of scales but is also becoming important in such diverse fields as genetics, ecology, cytology, and physiology; armored scales may well find an expanding place in the laboratory as subjects for researches in a variety of fields. Pseudaulacaspis pentagona (Targ.) has one of the most unusual, yet to date one of the best understood life cycles of the armored scales. Various aspects of its biology have been described by Berlese (1910), Smit (1953), Dustan (1953), and Monti (1955). Accounts of its natural enemies or biological control programs have been given by Berlese (1910) for Italy, by Ogilvie (1928) and Simmonds (1955) for Bermuda, by Bennett (1956) for Trinidad, and Clausen (1956) for Florida. P. pentagona is a pest of economic importance on a wide variety of hosts throughout an extekive geographic distribution (Anon., 1956), and has been cultured extensively in the biological control laboratory for the mass-rearing of scale parasites and predators. Recent investirzations of the sex determining mechanik and chromosome behaviour (Brown and Bennett, 1957) have arain shown unusual processes and relationships, some of which appear to occur in many other species of armored scales. It is the purpose of this paper to describe the life cycle of P. pentagona as it is known from field and laboratory studies and from cytological and genetic investigations.

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Possible Control of Some Insects by Killing the Males

Cited by 4 publications

References 0 publications

Biological control of olive scale,Parlatoria oleae(Colvée), in California by importedAphytis maculicornis(Masi) (Hymenoptera: Aphelinidae)

Biological control of olive scale,Parlatoria oleae(Colvée), in California by importedAphytis maculicornis(Masi) (Hymenoptera: Aphelinidae)

The Inventory of Scale Insects (Hemiptera, Coccoidea) Associated With Olive Tree in North of Tunisia

Life History and Sex Determination in the Diaspine Scale,Pseudaulacaspis pentagona(Targ.) (Coccoidea)

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