동적
마른
백과 사전
정원
세트
한국의

Pests of succulent plants

Dummer. ゛☀
2017년09월24일
General comments about pest control

Many common pests can be controlled by use of systemic insecticides, contact insecticides, insecticidal soaps and, in some cases, natural predators. Systemic insecticides are very effective as they are absorbed by the plant, making its sap poisonous to the pests. However, they may be toxic to people and absorbed through the skin in the same way.
Dimethoate was an effective ingredient of systemic insecticides, but unfortunately it has generally been withdrawn from the non-professional market in EC countries.

The best systemic insecticides currently available are based on Imidacloprid. In the UK this is marketed as "Provado Vine Weevil Killer," but is effective against a wide range of insects including mealy bugs. In the USA Bayer market a formulation containing Imidacloprid. Plants should be watered with this insecticide during the growing season. The substance is taken up into the plant which then becomes toxic to insects. A single treatment lasts for several months. Imidacloprid is not very effective against red spider. It is relatively low in toxicicity to most animals other than insects and application without spraying minimises contact. Neonicotinoid (similar to Nicotine) insecticides are getting a bad press lately, as harmful to beneficial insects such as bees and butterflies, but it's unlikely that bees would be harmed by indoor use of Imidacloprid on a collection of succulent plants.

Contact insecticides such as Malathion can also be effective, but only at the time of application and all parts of the plant must be covered. Unfortunately, Malathion and its derivastives are toxic to Crassulaceae and some other succulents.
A range of insecticidal soaps are also available, and some people swear by spraying with diluted washing-up liquid (a few drops in a litre), which at least is fairly harmless.

It is worth noting that repeated use of insecticides can select for resistant insects among any survivors (evolution in action !). It is not yet clear whether resistance will develop to Imidacloprid or to the new insecticidal soaps. This can be avoided by ensuring that treatments are as thorough as possible, so there are no survivors and by using more than one insecticide in rotation.

Biological controls are available for some pests but are incompatible with insecticides. Use one or the other. It is difficult to obtain a predator/prey balance that allows long-term protection in a small collection. I'd question the efficacy of biological controls in a small glasshouse, but it may be worth experimenting with these if you dislike using insecticides.
1
1
마른
lrgarden님이 좋아요 눌렀습니다
댓글
😀 😁 😂 😄 😆 😉 😊 😋 😎 😍 😘 🙂 😐 😏 😣 😯 😪 😫 😌 😜 😒 😔 😖 😤 😭 😱 😳 😵 😠
* .JPG .JPEG .PNG .GIF 만 지원됩니다.
* 사진 크기는 300*300px 보다 작을 수 없습니다.
共1条评论
0
So rather than spraying with Imidacloprid, should I water my plants with it??
바로 지금 댓글
최신 건조
건조 권장
피드백 보고서

당신이 어떤 의견이나 제안 사항이 있습니까, 우리에게 소리를주세요.

콘텐츠를 입력하십시오.
다운로드 녹색 손가락 APP

QR 코드를 스캔하고, 녹색 손가락 APP를 다운로드하고, 더 많은 것을 읽을 휴대폰

이차원 코드

열기 APP는 그의 집의 2 차원 코드, 직접보기를 청소

언어 전환
세트
VIP
로그 아웃

좋은 텍스트를 공유, 녹색 손가락 (GFinger) 원예 도우미가 성장을 목격.

컴퓨터 터미널 운영으로 가십시오.

컴퓨터 터미널 운영으로 가십시오.

전달
주제 삽입
친구에게 상기시키기
보내기
/
제출 완료 제출 실패 최대 화질 성공 오! 약간의 문제 전달 된 항목 보고서 전달 더보기 마른 상환 청구 모멘트 바로 지금 댓글 이야기는 당황 초대! 표현 사진 추가 댓글 .JPG .JPEG .PNG .GIF 만 지원됩니다. 사진 크기는 300*300px 보다 작을 수 없습니다. 사진을 하나 이상 올립니다. 콘텐츠를 입력하십시오.