Researches on the side effects of gibberellic acid (GA3) applications on citrus mealybug[Planococcus citri(Risso) (Hom.:Pseudococcidae)] and some of its natural enemies.

Yıl 1998, Cilt: 38 Sayı: 3, – , 13.12.1998

Öz

Gibberellic acid is used to increase the forming of fruits, to decrease the shedding of fruits in june and to prevent the shedding of fruits before harvest time in citrus groves.
In this study, the side effects of three different usages of Gibberellic acid (20 ppm GA3, 200 ppm Agrowett (AW) and 20 ppm GA3+200 ppm AW) against citrus mealybug, Planococcus citri (Risso) and its predator, Cryptolaemus montrouzieri Muls. (Col.:Coccinellidae) and it’s parasitoid Leptomastix dactylopii How. (Hym.:Encyrtidae) which are used for its biological control were determined in the laboratory.
GA3 character didn’t have any preventive effect on the hatching of P. citri eggs and infestation ability of the nymphs. In addition it didn’t have any toxic effect on 2. and 3. nymph stages of P. citri (Table 1, 2, 3). But AW and GA3+AW characters prevented the hatching P. citri eggs 12 and 20%(Table 1), and the infestation ability of 2 and 3. nymph stage 17.3 % and %19.7 (Table 2), respectively. And also when these two compounds were sprayed on the mealybug nymphs they made 16.8%-17.8% toxic effect (Table 3). None of the three characters (GA3, AW, GA3+AW) affected the hatching of C. montrouzieri eggs and its adults contactly nor the parasitation rate of L.dacylopii taking into account of IOBC classification for beneficials.

Anahtar Kelimeler

Turunçgillerde gibberellic asit(GA3) uygulamalarının Turunçgil unlubiti[<em>Planococcus citri</em> (Risso) (Hom: Pseudococcidae)] ve bazı doğal düşmanları üzerindeki etkilerinin araştırılması.

Yıl 1998, Cilt: 38 Sayı: 3, – , 13.12.1998

Öz

Turunçgillerde uygulanan gibberellik asit(GA3)’in değişik kullanım şekille-rinin Turunçgil unlubiti [Planococcus citri(Risso) (Hom.:Pseudococcidae)]ile bunun biyolojik mücadelesinde kullanılan Cryptolaemus montrouzieri Muls. (Col: Coccinellidae) ve Leptomastix dactylopii How (Hym.:Encyrtridae)’ye etkileri laboratuvarda belirlenmiştir. Denemede kullanılan GA3 karakterinin P.citri’nin değişik dönemlerine toksik etkisi bulunmamıştır. Diğer karakterlerden bir yapıştırıcı olan Agrowett (AW) ve GA3+AW karışımı ise P.citri’nin yumurta açılımını ile %12-20, ikinci ve üçüncü dönem nimflerine kontakt olarak %16.8-17.8 ve bu nimflerin enfekte kabiliyetini ise %17.3-19.7 oranlarında engellemiştir. Yine denemede yer alan GA3, AW ve GA3 + AW’in C. montrouzieri’nin yumurta açılımına ve erginlerine, L. dacylopii’nin konukçusunu parazitlemesine IOBC’nin faydalılar için laboratuvar denemelerinde kabul ettiği sınıflandırmaya göre toksik etkileri olmadığı sonucuna varılmıştır.

Anahtar Kelimeler

Gibberellic asid; Turunçgil unlubiti; Planococcus citri; yan etki; Cryptolaemus montrouzieri; Leptomastix dactylopii; Gibberellic acid; side effect

Ayrıntılar

Birincil Dil İngilizce
BölümMakaleler
Yazarlar

M. KAPLAN

Yayımlanma Tarihi13 Aralık 1998
Gönderilme Tarihi2 Ocak 2009
Yayımlandığı Sayı Yıl 1998 Cilt: 38 Sayı: 3

Kaynak Göster

APAKAPLAN, M. (1998). Researches on the side effects of gibberellic acid (GA3) applications on citrus mealybug[Planococcus citri(Risso) (Hom.:Pseudococcidae)] and some of its natural enemies. Plant Protection Bulletin, 38(3).
AMAKAPLAN M. Researches on the side effects of gibberellic acid (GA3) applications on citrus mealybug[Planococcus citri(Risso) (Hom.:Pseudococcidae)] and some of its natural enemies. Plant Protection Bulletin. Aralık 1998;38(3).
ChicagoKAPLAN, M. “:Pseudococcidae)] and Some of Its Natural Enemies”. Plant Protection Bulletin 38, sy. 3 (Aralık 1998).
EndNoteKAPLAN M (01 Aralık 1998) Researches on the side effects of gibberellic acid (GA3) applications on citrus mealybug[Planococcus citri(Risso) (Hom.:Pseudococcidae)] and some of its natural enemies. Plant Protection Bulletin 38 3
IEEEM. KAPLAN, “:Pseudococcidae)] and some of its natural enemies”., Plant Protection Bulletin, c. 38, sy. 3, 1998.
ISNADKAPLAN, M. “:Pseudococcidae)] and Some of Its Natural Enemies”. Plant Protection Bulletin 38/3 (Aralık 1998).
JAMAKAPLAN M. Researches on the side effects of gibberellic acid (GA3) applications on citrus mealybug[Planococcus citri(Risso) (Hom.:Pseudococcidae)] and some of its natural enemies. Plant Protection Bulletin. 1998;38.
MLAKAPLAN, M. “:Pseudococcidae)] and Some of Its Natural Enemies”. Plant Protection Bulletin, c. 38, sy. 3, 1998.
VancouverKAPLAN M. Researches on the side effects of gibberellic acid (GA3) applications on citrus mealybug[Planococcus citri(Risso) (Hom.:Pseudococcidae)] and some of its natural enemies. Plant Protection Bulletin. 1998;38(3).

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