Alternative control measures for thrips on mangoes (SAMGA Yearbook 2002)

11th April 2011 11:32 am by Chrisna Strydom
Thrips are becoming an increasingy serious pest on mangoes. At present, there is only one registerd chemical for use on frutting trees Read full article »

Laboratory screening of chemicals for the control of mango scale (SAMGA Yearbook 2002)

11th April 2011 11:18 am by Chrisna Strydom
Since the use of organo-phosphates on export fruit is expected to be banned by the E.U, there is an urgent need to find an alternative control measure for the mango scale insect. Read full article »

Control of mango scale insects using mineral oils (SAMGA Yearbook 2002)

11th April 2011 11:12 am by Chrisna Strydom
With the eminent ban on the use of organo-phosphate imposed by the EU on mango exporters, the need to find an alternative control method for scale insects is becoming increasingly urgent. Read full article »

Mango cultivar evaluation program 2001/02 (SAMGA Yearbook 2002)

11th April 2011 11:04 am by Chrisna Strydom
A mango cultivar evaluation program was established by Merensky Technological Services, in the early 1990's. At present the program consist of approximately 90 mango cultivars Read full article »

Colouring up green skin mango cultivars (SAMGA Yearbook 2002)

11th April 2011 10:56 am by Chrisna Strydom
Mangoes, being tropical fruit, were previously viewed by the European market as exotic fruit and emphasis was placed on external fruit appearance rather than eating quality Read full article »

Evaluation of alternatives to copper oxychloride for the control of bacterial black spot - progress report (SAMGA Yearbook 2002)

11th April 2011 10:50 am by Chrisna Strydom
Bacterial black spot is the most important pre-harvest disease of mango and can cause severe fruit loss in susceptible cultivars such as Keitt and Kent Read full article »

Optimization of irrigation management in mango orchards (SAMGA Yearbook 2002)

11th April 2011 10:46 am by Chrisna Strydom
In many areas of South Africa drought and increased water demands endanger the sustainability of irrigated agriculture. Read full article »

Control of mango scale and mealybugs using systemic chemicals (SAMGA Yearbook 2002)

11th April 2011 10:25 am by Chrisna Strydom
Nitroguidelines are a new generation of systemic insecticides. The chemicals can be applied as soil drenches, stem paints or foliar sprays. Read full article »

(Evaluation of orchard dips for reduction of sapburn, lenticel damage and post harvest diseases on mango - final report (SAMGA Yearbook 2002)

11th April 2011 10:14 am by Chrisna Strydom
Orchard dip solutions used by growers to reduce sapburn on fruit are known to sometimes aggravate lenticel damage. Results from trials done in 2001 revealed that Agricultural lime and Sporekill Read full article »

Evaluation of four mineral oils for control of mango scale (Aulacaspis tubercularis) on mango (SAMGA Yearbook 2002)

11th April 2011 10:08 am by Chrisna Strydom
Mango scale and other scale insects including mealybug (De Villiers, 1998) are a problem on late cultivars. The insects move to the fruit and blemish Read full article »

Further investigations into control of bacterial black spot with copper sprays (SAMGA Yearbook 2002)

11th April 2011 10:02 am by Chrisna Strydom
A spray program trail confirmed that the standard copper oxychloride treatment at 300g/hL is still the best option for bacterial black spot control Read full article »

Changes to the epicticular wax layer of mango cv. Kent due to handling along a commercial packline (SAMGA Yearbook 2002)

11th April 2011 09:56 am by Chrisna Strydom
All plant surfaces are covered by epicuticular wax that plays an important role in plant defence mechanisms. Lenticels on fruit surfaces can be damaged Read full article »

Evaluation of products for the control of citrus thrips Scirtothrips aurantii Faure (Thysanoptera: Thripidae) on mango (SAMGA Yearbook 2002)

8th April 2011 12:32 pm by Chrisna Strydom
The South African Citrus thrips is a pest of mango in southern africa. Infestation of young mango fruit results in scarring Read full article »

Lenticel damage in mango: influence of harvest date and cold-storage conditions (SAMGA Yearbook 2002)

8th April 2011 12:10 pm by Chrisna Strydom
Lenticel damage is evidenced by the darkening of tissue immediately surrounding lenticels on the skin of mango fruits. Read full article »

The use of kaolin against insect pests of mangoes (SAMGA Yearbook 2002)

8th April 2011 12:02 pm by Chrisna Strydom
Kaolin, a clay mineral which is the active ingredient in a product called Surround WP was evaluated for protection Read full article »

Gall fly on mango (SAMGA Yearbook 2002)

8th April 2011 11:55 am by Chrisna Strydom
Although the identity of mango gall fly has not yet been establish beyond doubt, Procontarinia matteiana Kiefer & Cecconi Read full article »

Die evaluasie van ingevoerde mango kultivars (SAMGA Yearbook 2002)

8th April 2011 11:50 am by Chrisna Strydom
Budwood of 10 cultivars and selections were imported from Israel during 1997. These included two cultivars, Tango and Shelly Read full article »

Chairman's report 2001/02 (SAMGA Yearbook 2002)

8th April 2011 11:41 am by Chrisna Strydom
Vir almal in die mangobedryf was die laaste seisoen beter as die vorige een. Niemand van die SAMGA personeel het bedank nie en met almal binne en buite die kantoor Read full article »

(Mango Newsletter Volume 57) Gall fly on mango

7th April 2011 03:42 pm by Chrisna Strydom
Gall fly, Procontarinia matteiana, is a minute insect that infests the mango leaves at a very young stage. After the leaves have only just emerged (Fig. 1) eggs are deposited after Read full article »

(Mango Newsletter Volume 56) Water pollution consequences for irrigated agriculture

9th December 2010 04:43 pm by Chrisna Strydom
The impact of water pollution in SA overall, and agriculture specifically is underestimated. .) Read full article »