+ Translate

Evaluation of acephate on gladiolus for control of thrips and lepidopterous larvae

, : Evaluation of acephate on gladiolus for control of thrips and lepidopterous larvae. Proceedings of the Florida State Horticultural Society 88: (1976) 584-586

Acephate was applied to gladiolus at 3 locations and 4 rates (0.5, 0.75, 1.0 and 1.5 lb AI[active ingredient]/acre) and compared to an unsprayed check and either a grower's standard program or methomyl treatment. Although counts of lepidopterous larvae were low, ranging from 1.2 to 7.9/100 untreated plants, significantly more untreated plants were damaged than treated plants at all locations. Insect damage to plants at the lowest acephate rate was significantly greater than other acephate treatments in only 1 location. Plants treated with acephate were less damaged than either the grower or methomyl treatments. Populations of gladiolus thrips on spikes harvested and held 5 days for flower development were also low, ranging from 1.1-6.7/untreated spike. Untreated spikes were infested with 95.8% of the collected thrips. No visual phytotoxicity (chlorotic or dead tissue) was observed on 2 cultivars, 'Friendship' and 'Peter Pears,' even when sprays were applied directly to open flowers. Neither spike length nor corn yield was significantly affected by treatment for either cultivar (cv.).

(PDF 0-2 workdays service)

Accession: 005395889

Submit PDF Full Text: Here

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Related references

Schuster, D.; Wilfret, G., 1976: Evaluation of acephate on Gladiolus for control of thrips and lepidopterous larvae. Proceedings of the annual meeting: ub 15, 1976), 88 584-590

abanowski, G.; Mynett, M., 1990: Control of the gladiolus thrips, Taeniothrips simplex (Morison), on gladiolus crop. In field trials in Poland between 1985-86, both foliar spray and corm applications against Taeniothrips simplex [Thrips simplex], a serious pest of Gladiolus, were investigated. Acephate, pirimiphos-methyl and cypermethrin at concn of 0.1%, 0.1% a...

Hargreaves, J.R.; Cooper, L.P., 1980: Control of gladiolus thrips, Taeniothrips simplex (Morison), in gladiolus fields in south-east Queensland. Three field trials were carried out in south-eastern Queensland in 1974-77 to compare spray and soil applications of 13 insecticides for the reduction of damage to the flower spikes of gladiolus by Thrips simplex (Morison) (Taeniothrips simplex)....

Bogs, D.; Braasch, D., 1977: The gladiolus thrips (Taeniothrips simplex Moris) on gladiolus corms in store and its control by hydrogen cyanide and phosphine. Infestation of gladiolus by Taeniothrips simplex (Morison) in the German Democratic Republic is favoured by the way in which the corms are stored during the winter for drying at temperatures between 15 and 25 deg C. The thrips does not overwinter...

Schuster D.J.; Price J.F.; Magie R.O., 1984: Gladiolus thrips thrips simplex reduction on gladiolus corms following insecticidal and hot water dips. Gladiolus corms dipped in water preparations of ethoprop, oxamyl or acephate had significantly fewer T. simplex (Morison) 4-7 d [day] after dipping than did corms dipped in water only at C. The insecticidal properties of these chemicals...

Kono, S.; Sakiyama, K.; Yamashita, M., 1988: Occurrence and control of gladiolus thrips, Thrips simplex Morison in Hyogo Prefecture. Kinki Chugoku Agricultural Research, 27-30 No. 76

Conijn, C.G.M., 1993: Biological control of the gladiolus thrips Taeniothrips simplex on gladiolus corms in storage rooms with Amblyseius barkeri and Orius insidiosus. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent 58(2A): 391-396

Anonymous, 2009: Susceptibility to gladiolus thrips Thrips simplex in four different coloured gladiolus cultivars

Leon Lopez, R.L., 1978: Evaluation of insecticides in the control of lepidopterous larvae under laboratory conditions. Detailed results are presented of laboratory tests in Mexico on the toxicity of a wide range of compounds to larvae of Spodoptera exigua (Hb.), S. frugiperda (J.E. Smith), Estigmene acraea (Dru.) and Heliothis virescens (F.). The test compound was...

Mcleod, Paul, 1999: Evaluation of insecticides for control of lepidopterous larvae on collards, 1998. Saxena, K N [Editor] Arthropod Management Tests 122