Results 111 to 120 of about 187 (142)

Spatial Pattern of Saissetia oleae (Homoptera: Coccidae) in Greece

Environmental Entomology, 1997
The spatial pattern and the spatial density dependence of mortality of Saissetia oleae (Olivier) were studied under field conditions. The results indicated that the distribution of S. oleae was highly aggregated and the degree of aggregation changed considerably during the generation, as indicated by the values of the exponent k of negative binomial ...
E. T. Kapatos, E. T. Stratopoulou, A. Sahinoglou   +2 more
openaire   +1 more source

FIELD EVALUATION OF FUSARIUM LARVARUM FORMULATIONS IN THE BIOCONTROL OF SAISSETIA OLEAE ON OLIVE IN APULIA

Acta Horticulturae, 2002
Saissetia oleae is a well known olive pest that causes direct damage to the crop and favoursthe development of sooty mold. The efficacy of two fields strains of Fusarium larvarum (ITEM 2135 and ITEM 2139) isolated from adults of the almond scale insect Suturaspis archangelskyae, was tested in Apulia (southern Italy) as biocontrol agents against ...
Antonio Moretti
exaly   +2 more sources

Metaphycus anneckei and Metaphycushageni: two discrete speciesparasitic on black scale, Saissetia oleae

BioControl, 2000
Parasitized black scale, Saissetia oleae, were collected from olives(Olea europaea L.) in Spain and from thismaterial an encyrtid parasitoid was reared that istaxonomically similar to Metaphycus anneckeiGuerrieri and Noyes. Differences were noted betweenthe Spanish Metaphycus nr. sp. anneckeiand material described as M.
Daane, Kent, Barzman, Marc, M., Le Caltagirone, L.E., Hagen, K.S   +3 more
openaire   +2 more sources

The Resistance of Black Scale (Saissetia Oleae Bern.) to Hydrocyanic Acid Fumigation

Journal of Economic Entomology, 1929
Experiments were made to determine if black scale found on citrus trees in a part of the San Gabriel Valley, California are more difficult to control than black scale found in other districts. Scale from the so-called resistant district and from districts outside this area were established on small potted seedling orange trees and fumigated with ...
Geo. P. Gray, A. F. Kirkpatrick
openaire   +1 more source

Saissetia oleae . [Distribution map].

Distribution Maps of Plant Pests, 2005
Abstract A new distribution map is provided for Saissetia oleae (Ol.). Hem., Coccoidea. Attacks Citrus , olive, oleander, many subtropical grasses, trees and shrubs. Information is given on the geographical distribution in Europe, Balearic Islands, Corfu, Corsica, Crete, France ...
openaire   +1 more source

Biological control of the mediterranean black scale,Saissetia oleae (Hom.: Coccidae) in Israel

Entomophaga, 1993
During the years 1975–1982, the “Israel Cohen” Inst. for Biological Control conducted a biological control project, against the black scale,Saissetia oleae (Olivier) (Homoptera: Coccidae). Seventeen species of natural enemies were introduced into Israel during that period, and their action reduced the populations of the pest to an acceptable level. The
Y. Argov, Y. Rössler
openaire   +1 more source

BLACK SCALE SAISSETIA OLEAE OLIVIERE, SIGNIFICANT OLIVE PEST IN THE AREA OF YUGOSLAV SEASIDE

Acta Horticulturae, 1994
exaly   +2 more sources

Trehalase, invertase, and amylase activities in the black scale, Saissetia oleae, and their relation to host adaptability

Journal of Insect Physiology, 1976
Abstract In young females of the black scale, Saissetia oleae, the optimum conditions for invertase activity involve a reaction mixture of pH 5.5 and 2% sucrose at 37°C for 60 min; for amylase, pH 6.0 and 0.5% starch at 37°C for 45 min; and for trehalase, pH 5.5 and 1.5% trehalose at 37°C for 60 min.
I. Ishaaya, E. Swirski
openaire   +1 more source

The development and structure of the eyes, ocelli, of the female black scale, Saissetia oleae bern

Journal of Morphology, 1935
AbstractThe female black scale possesses a pair of lateral ocelli. Each develops as a small disc of enlarged hypodermal cells which increases in size and invaginates. The disc finally becomes cut off from the hypodermis to form a vesicle lying between the regular hypodermis and the lateral margin of the brain.
openaire   +1 more source

Current status of Saissetia oleae biological control in Sardinia (Italy)

2010
During 1993 and 2008 the parasitoid complex of black scale, Saissetia oleae (Oliv.), was studied in olive groves of Sardinia after the encyrtids Metaphycus helvolus (Comp.) and M. lounsburyi (How.) were introduced in the period 1981-1982. The parasitism rate on nymphs was 6.7% in 1981, before the introduction of the two encyrtids, and 8.0% and 5.3% in ...
DELRIO, Gavino, FOXI C.
openaire   +1 more source