U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

Search

3  Search Results

1 - 3 of 3
Number of results to display per page

Search Results

1. Dispersion Patterns and Sampling Plans for Diaphorina citri (Hemiptera: Psyllidae) in Citrus

Author:
Setamou, Mamoudou; Flores, Daniel; French, J. Victor; Hall, David G.
Source:
Journal of economic entomology 2008 v.101 no.4 pp. 1478-1487
ISSN:
0022-0493
Subject:
Diaphorina citri; population density; spatial distribution; developmental stages; sampling; Citrus paradisi; Citrus sinensis; shoots; grapefruits; oranges; orchards; regression analysis; statistical models; estimation; Texas
Abstract:
... The abundance and spatial dispersion of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) were studied in 34 grapefruit (Citrus paradisi Macfad.) and six sweet orange [Citrus sinensis (L.) Osbeck] orchards from March to August 2006 when the pest is more abundant in southern Texas. Although flush shoot infestation levels did not vary with host plant species, densities of D. citri eggs, nymphs, and a ...
Handle:
10113/26708
DOI:
10.1603/0022-0493(2008)101[1478:DPASPF]2.0.CO;2
PubMed:
18767763

2. Evaluation of citrus rootstocks for the high pH, calcareous soils of South Texas

Author:
Louzada, E. S.; del Rio, H. S.; Sétamou, M.; Watson, J. W.; Swietlik, D. M.
Source:
Euphytica 2008 v.164 no.1 pp. 13-18
ISSN:
0014-2336
Subject:
acidity; crop quality; total soluble solids; Citrus aurantium; alkaline soils; scions; rootstock-scion relationships; crop yield; rootstocks; chlorosis; grapefruit juice; calcareous soils; Citrus paradisi; grapefruits; stress tolerance; Texas
Abstract:
... Citrus tristeza virus (CTV) is one of the most devastating disease in areas where sweet orange or grapefruit are budded onto sour orange rootstock. In Texas, the citrus industry is located in the far south of the state in a high pH and calcareous soils region, which makes sour orange the best rootstock option. The Texas industry has been under a threat since the arrival in Florida and Mexico of th ...
Handle:
10113/21042
DOI:
10.1007/s10681-008-9701-x

3. Long term fertilization effects on 'Rio Red' grapefruit yield and shape on a heavy textured calcareous soil

Author:
Wiedenfeld, Bob; Sauls, Julian
Source:
Scientia horticulturae 2008 v.118 no.2 pp. 149-154
ISSN:
0304-4238
Subject:
Citrus paradisi; grapefruits; crop yield; calcareous soils; soil texture; fertilizer rates; long term experiments; tree age; fruit quality; nitrogen fertilizers; phosphorus fertilizers; plant nutrition; shape; application methods; brix; titratable acidity; nutrient availability; nutrient uptake; nutrient use efficiency; Texas
Abstract:
... Fertilizer recommendations for citrus production on heavier textured, calcareous soils increase with the age of the tree up to 168kgNha⁻¹ year⁻¹ from a soluble source in one or two applications. Such practices may be inefficient and could cause detrimental effects on fruit quality. A variety of fertilization practices are used in South Texas, and additional evaluation is needed. Rates and sources ...
DOI:
10.1016/j.scienta.2008.06.001