Efficacy of some biorational insecticides against the cactus scale pest Diaspis echinocacti (Bouché, 1833) (Hemiptera: Diaspididae) in Morocco
Diaspis echinocacti (Bouché) is a significant pest affecting various cactus pear species worldwide. Over the past three years, this scale insect was able to build up a considerable population and had now reached a pest status in Morocco. To control this pest, insecticides with different modes of act...
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| Format: | Article |
| Language: | English |
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National Institute of Agronomic Research "INRA" Morocco
2023-06-01
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| Series: | African and Mediterranean Agricultural Journal - Al Awamia |
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| Online Access: | https://revues.imist.ma/index.php/Afrimed/article/view/41149 |
| _version_ | 1827395730901303296 |
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| author | Mohamed El-Aalaoui Mohamed Sbaghi |
| author_facet | Mohamed El-Aalaoui Mohamed Sbaghi |
| author_sort | Mohamed El-Aalaoui |
| collection | DOAJ |
| description | Diaspis echinocacti (Bouché) is a significant pest affecting various cactus pear species worldwide. Over the past three years, this scale insect was able to build up a considerable population and had now reached a pest status in Morocco. To control this pest, insecticides with different modes of action were evaluated in laboratory and greenhouse. In laboratory bioassays, d-limonene at 30-150 cc/hl, mineral oil at 700-2400 cc/hl, potassium salts of fatty acid at 15-60 cc/hl, and pyriproxyfen at 8-37 cc/hl were evaluated against first instar nymphs and adult females of the cochineal, while only d-limonene applied at 150 cc/hl, mineral oil applied at 2000 and 2400 cc/hl, and potassium salts of fatty acid applied at 60 cc/hl were used in greenhouse tests. In laboratory tests, mineral oil at 2400 cc/hl, d-limonene at 150 cc/hl, and potassium salts of fatty acid at 60 cc/hl were the most effective against nymphs and adult females of the cochineal 48 hours after exposure to insecticide treatments, resulting in LT50 values of 24, 24 and 48 h (nymphs), and 48 h (adult females), respectively. Under greenhouse conditions, mineral oil at 2400 cc/hl and d-limonene at 150 cc/hl showed significantly higher mortality rates [70 and 67% (nymph) and 45 and 42% mortality (adult female), respectively] and a high potential for degrading waxy carapace covering the body of the cochineal. Effective control of this harmful pest depends on a justified use of these two insecticides (mineral oil and d-limonene) and requires the development of an integrated management approach. |
| first_indexed | 2024-03-08T18:39:00Z |
| format | Article |
| id | doaj.art-70bfd2bd56524e06b64a65c38929b6e5 |
| institution | Directory Open Access Journal |
| issn | 0572-2721 2658-9184 |
| language | English |
| last_indexed | 2024-03-08T18:39:00Z |
| publishDate | 2023-06-01 |
| publisher | National Institute of Agronomic Research "INRA" Morocco |
| record_format | Article |
| series | African and Mediterranean Agricultural Journal - Al Awamia |
| spelling | doaj.art-70bfd2bd56524e06b64a65c38929b6e52023-12-29T10:04:04ZengNational Institute of Agronomic Research "INRA" MoroccoAfrican and Mediterranean Agricultural Journal - Al Awamia0572-27212658-91842023-06-010139213610.34874/IMIST.PRSM/afrimed-i139.4114919146Efficacy of some biorational insecticides against the cactus scale pest Diaspis echinocacti (Bouché, 1833) (Hemiptera: Diaspididae) in MoroccoMohamed El-Aalaoui0Mohamed Sbaghi1INRAINRA / Division ScientifiqueDiaspis echinocacti (Bouché) is a significant pest affecting various cactus pear species worldwide. Over the past three years, this scale insect was able to build up a considerable population and had now reached a pest status in Morocco. To control this pest, insecticides with different modes of action were evaluated in laboratory and greenhouse. In laboratory bioassays, d-limonene at 30-150 cc/hl, mineral oil at 700-2400 cc/hl, potassium salts of fatty acid at 15-60 cc/hl, and pyriproxyfen at 8-37 cc/hl were evaluated against first instar nymphs and adult females of the cochineal, while only d-limonene applied at 150 cc/hl, mineral oil applied at 2000 and 2400 cc/hl, and potassium salts of fatty acid applied at 60 cc/hl were used in greenhouse tests. In laboratory tests, mineral oil at 2400 cc/hl, d-limonene at 150 cc/hl, and potassium salts of fatty acid at 60 cc/hl were the most effective against nymphs and adult females of the cochineal 48 hours after exposure to insecticide treatments, resulting in LT50 values of 24, 24 and 48 h (nymphs), and 48 h (adult females), respectively. Under greenhouse conditions, mineral oil at 2400 cc/hl and d-limonene at 150 cc/hl showed significantly higher mortality rates [70 and 67% (nymph) and 45 and 42% mortality (adult female), respectively] and a high potential for degrading waxy carapace covering the body of the cochineal. Effective control of this harmful pest depends on a justified use of these two insecticides (mineral oil and d-limonene) and requires the development of an integrated management approach.https://revues.imist.ma/index.php/Afrimed/article/view/41149diaspis echinocactiinsecticides biorationnelsfiguier de barbaried-limonènehuile minérale |
| spellingShingle | Mohamed El-Aalaoui Mohamed Sbaghi Efficacy of some biorational insecticides against the cactus scale pest Diaspis echinocacti (Bouché, 1833) (Hemiptera: Diaspididae) in Morocco African and Mediterranean Agricultural Journal - Al Awamia diaspis echinocacti insecticides biorationnels figuier de barbarie d-limonène huile minérale |
| title | Efficacy of some biorational insecticides against the cactus scale pest Diaspis echinocacti (Bouché, 1833) (Hemiptera: Diaspididae) in Morocco |
| title_full | Efficacy of some biorational insecticides against the cactus scale pest Diaspis echinocacti (Bouché, 1833) (Hemiptera: Diaspididae) in Morocco |
| title_fullStr | Efficacy of some biorational insecticides against the cactus scale pest Diaspis echinocacti (Bouché, 1833) (Hemiptera: Diaspididae) in Morocco |
| title_full_unstemmed | Efficacy of some biorational insecticides against the cactus scale pest Diaspis echinocacti (Bouché, 1833) (Hemiptera: Diaspididae) in Morocco |
| title_short | Efficacy of some biorational insecticides against the cactus scale pest Diaspis echinocacti (Bouché, 1833) (Hemiptera: Diaspididae) in Morocco |
| title_sort | efficacy of some biorational insecticides against the cactus scale pest diaspis echinocacti bouche 1833 hemiptera diaspididae in morocco |
| topic | diaspis echinocacti insecticides biorationnels figuier de barbarie d-limonène huile minérale |
| url | https://revues.imist.ma/index.php/Afrimed/article/view/41149 |
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