Cây Cảnh - Bonsai


Posted On February 9, 2017 at 1:03 am by / 93 Comments

Thời tiết thay đổi, hay mưa nhiều ít nắng là lúc nấm bệnh phát triển gây hại cho các cây lan trong vườn, để chủ động phòng trừ nấm bệnh gây hại cho lan các bạn cần biết một số loại thuốc để phun phòng trừ

Phòng trị côn trùng gây hại cho lan: Chúng ta có thể trồng các loại loại cây có mùi như: húng, quế, bạc hà, xả… quanh vườn để xua đuổi các loại côn trùng gây hại hoặc dùng vòi nước tưới dưới mặt lá để cuốn trôi ấu trùng, trứng của các loại côn trùng gây hại.

Khi các biện pháp này không có hiệu quả thì sử dụng các loại thuốc dưới đây luân phiên để tránh lờn thuốc:
– Nhện đỏ: Nissorun, Pegasus, Dimethoate, Mitac, Rufast, Ortus, Comites, Abamectin, Kelthane
– Bọ trĩ: Videci, Visher, Vifast, Trebon, Banate 40SP, Supracide, Dragon (5cc) + SK99 (20cc)/ bình 8 lít
– Rệp sáp, rệp bột: Acephate + chất bám dính
– Rệp vảy: Malathion, Trebon

Phòng trị nấm bệnh:
– Thối gốc và thối rễ: Viben, Fudasol
– Thối mềm: Kasai
– Thối nâu: Streptomycin, Tetracylin
– Thối đen: Aliette, Ridomil, Vilaxyl
– Bệnh đốm vòng, khô cháy lá, đốm nâu, héo rễ: Tospin, Viben, Fudasol, Vicarben, Desoral
– Đen thân: Zin, Zineb, Carbenzim
– Bệnh đốm lá: Cabenzim + Dipamate, Cadilac, Thio – M, Dipomate
– Bệnh thán thư, thối nâu vi khuẩn: Kasumin, Saipan + Mexyl, Saipan + Alpine, Mexyl + Alpine

Thuốc trừ nấm bệnh Aliette

Chống thối rễ, thối thân, dùng tốt trong mùa mưa.

Thuốc trừ nấm CARBENZIM 500FL

– Thuốc trừ nấm nội hấp và tác dụng rộng. Trị tốt bệnh Thán thư trên lan.
– Có thể dùng để quét lên chổ bị bệnh, các vết thối nhũn.
– Không hôi.

Thuốc trừ nấm bệnh Viben – C

Là thuốc trừ bệnh có tác động tiếp xúc và nội hấp, có phổ tác dụng rộng trừ bệnh do nấm và vi khuẩn gây ra, Trị thối gốc, thối rễ lan.

Thuốc trừ bệnh TopSin M 70WP

– Thuốc lưu dẫn, nội hấp, đặc trị nhiều loại bệnh trên nhiều cây trồng khác nhau. Chuyên trị vàng lá.

Thuốc trừ bệnh Antracol

Thuốc trừ bệnh phổ rộng trên cây ăn quả, rau màu và lúa.
Rất an toàn cho cây, phun được ngay cả giai đoạn ra bông.
Thuốc trừ bệnh bổ sung vi lượng kẽm Zn++ dễ tiêu cho cây trồng → mặc áo giáp kẽm cho cây.
Dưỡng lá nuôi đòng, giúp tăng năng suất, chất lượng lúa.

Trừ nấm bệnh, vi khuẩn sinh học EXIN 4.5HP

Trừ nấm bệnh dạng sinh hoc: không độc hại cho con người và môi trường, không mùi.

Thuốc trừ sâu Suprathion 40EC

– Trừ rệp (sáp, vảy) rất tốt, diệt cả kiến, cuốn chiếu.
– Hiệu quả lâu dài.
– Lúc bị rệp, dùng 3 lần, mỗi lần cách nhau 3 ngày.
– Dùng bàn chải đánh răng cọ vào chổ bị rệp càng tăng hiệu quả sử dụng. Sau đó phun toàn cây, chậu.
– Chú ý: rất hôi.

Thuốc trừ nhện Ortus 5SC

– Pha chế thuốc trị nấm rẻ tiền dùng cho vườn lan có quy mô lớn:
Pha 1kg Sunfat đồng CuSO4 vào 80lit nước đựng trong thùng nhựa hoặc lu sành, pha 1kg vôi bột vào 20 lít nước. Đổ dung dịch CuSO4 vào dung dịch vôi bột khuấy đều. Dùng một cây đinh sắt sạch nhúng vào dung dịch đã pha. Sau khi lấy ra nêu thấy lớp đồng đỏ bám trên đinh sắt biến thành màu đen thì cho thêm nước vôi vào cho đến khi đinh sắt không bị biến thành màu đen nữa thì pha thêm 10 lit nước để đem ra sử dụng.

Nguồn: sưu tầm Internet


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