標題: [生活小百科] Early Blight and Septoria Leaf Spot on Tomato Plants [打印本頁] 作者: 6t6t 時間: 2019-4-13 05:03 PM 標題: Early Blight and Septoria Leaf Spot on Tomato Plants
Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but 5 \+ Z) W4 L# d2 ^7 I/ ttvb now,tvbnow,bttvb公仔箱論壇+ p; ~/ A5 t' Z3 N
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.tvb now,tvbnow,bttvb8 F3 n, S @' l: O( E
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How to identify Early Blight7 R0 w' \* u7 q# i( W
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Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 公仔箱論壇7 }/ m6 j( B2 U6 j
9 v7 G3 F) h4 y) w2 l3 ^& Z4 x4 d5.39.217.77:8898newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 5.39.217.77:88985 Z' L7 Z5 K$ P/ X2 ~: L! Z
5 B$ ~3 m% C1 ^) [" L5 }5.39.217.77:8898in color and form concentric rings, or a \" e0 g; }: N( s+ T2 V8 _2 m / d8 `* n1 J6 A; b+ ^& c. X. N4 hTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 2 |9 `9 ^( @! v- c, b. n* YTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。 / L% U: {/ s& e2 h" S" |leaves may fall off. Extensive loss : O0 X1 z; L3 _# PTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。9 @- K0 D9 E+ j. T
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit. : c( ^3 o; ~+ n8 g7 Ntvb now,tvbnow,bttvb . S+ c6 E$ m: }1 }公仔箱論壇TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。$ e+ l5 K. Q! N X% U$ T
How to identify Septoria Leaf Spottvb now,tvbnow,bttvb9 m8 @6 N& T" Y$ l8 ]. P9 p( E
' m! L( M' ]7 y5 @Symptoms of Septoria leaf spot also start 5 y+ o f7 v Z, `/ X& O5.39.217.77:8898 * o8 r( I, ^7 Y5 {+ M m: y$ x5 Aon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change : C8 q! P! |0 y3 [5.39.217.77:8898 & q7 W& ~! V2 u0 l# o& xshape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. 5.39.217.77:8898: V! L7 \/ O, F+ o! ?# m% S* Z% w
" J5 K0 S# N8 U* C& Oplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas * O4 M2 |) K+ W3 J & B/ o6 I' k A) O/ P: I, rwhere tomatoes were grown. 6 K# O$ g% Z1 f8 Q9 n$ u$ D5.39.217.77:8898 i! a) H7 Y* T. C5.39.217.77:8898Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. @8 ]" P O8 yTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of " i6 l6 a$ u. d; l; V% m公仔箱論壇公仔箱論壇- P& _9 O0 ]+ X# c
fungus from the soil to your 3 ~$ G- f* X9 z1 r7 r9 L# h
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plants. , j( Q' C+ `0 C" d$ s8 {! E: B 1 o8 ], @& U& _- xStake or cage plants to keep them 2 }" E* x1 b8 H0 z- a
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off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and : e6 F/ [) v$ N1 D; ^/ d
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cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of ; I( x! @, D' F" r公仔箱論壇 / R. y4 P4 y2 P/ S8 zspace above the soil without any leaves. Do not use $ y0 }/ U Q* r, c* A; r , y' y5 {; l7 j' l' hoverhead watering. x7 u% x8 l8 J: H5.39.217.77:8898Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 7 a6 F% ~ Y3 P5.39.217.77:8898Consider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow 5.39.217.77:88987 s" U; B* K1 k0 c
: A2 ^/ U$ o3 q! b7 i1 efungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 1 A$ x% ^9 P& B( |/ r% WTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。; v; o5 l: k: V# e) E/ F/ P
wet. Keep your plants happy and healthy. Weak and stressed 1 f* ^& X ~. r% z6 _, T+ n
1 I# w6 y; k- R5.39.217.77:8898, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used # {# V2 y0 s; g9 ] . s2 [% d: R7 c3 M; ^' _: s# Y3 ^, |to remove diseased leaves should be disinfected before being used on a different plant.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。* [% Z9 x0 U" h6 {- X$ c
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Spray plants to prevent and control the 7 O\" A0 E7 d7 ?& N# w3 A/ L' @( Q
; k3 w) v0 Z% }6 B8 J' x: TTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。 ) V2 g1 K. r, }' H: s5 M8 s' vTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Late Blight on Tomato Plants 3 D& A* T5 v9 w2 ? 2 m" _& l! z9 U. r) W" n: j% X公仔箱論壇Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 5 F, i& ^) @/ u0 d" K! w0 v, ztvb now,tvbnow,bttvbtvb now,tvbnow,bttvb) B0 Y4 n$ y( a5 e; \ plants in a garden. Once a tomato plant - g9 f$ O! J( q# D% Y% B5.39.217.77:8898 9 a7 s& ?+ [$ f e: RTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, + I4 p' Q4 w2 H9 e& Ptvb now,tvbnow,bttvb, L2 M" y$ g' A% ]7 O
water-soaked spots on leaves and stems that grow and turn dark brown or gray. A white downy growth may develop on the underside of infected leaves. Late blight : x2 b\" e* [8 A1 o 1 S: b7 M% O! A! a# f3 o) ~tvb now,tvbnow,bttvb can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and , c+ z3 u" Q# Y; |: f公仔箱論壇 ' @6 Z7 x) K; N4 V5 }7 PSeptoria leaf spot infections will also help prevent late blight infections.
