Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but . @' n! x# V% @6 s4 B
1 ?0 n* m9 `& n, J! K7 {- R# f" htvb now,tvbnow,bttvbcan start at any time. Infections can occur anywhere and are most severe in wet and humid areas.
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8 {, a) h1 ^6 n& h/ XHow to identify Early BlightTVBNOW 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。% p% i* ^/ x7 M$ v0 @/ i
' s5 l# T: O6 y, D3 G5.39.217.76Symptoms 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3 e: V- s! B0 s$ |
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newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown
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, q8 L- {: t: G0 K1 J# ^tvb now,tvbnow,bttvbin color and form concentric rings, or a
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bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow,
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8 Y+ k# U6 A4 i0 Y3 ITVBNOW 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。leaves may fall off. Extensive loss
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% E* e- A; V) @5.39.217.76of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.tvb now,tvbnow,bttvb- C4 u. ~ z/ `0 G2 L* g
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3 y9 t! q% v7 `0 GHow to identify Septoria Leaf Spot公仔箱論壇3 r2 g9 H, V. W7 T3 A
s' {% F3 S$ xSymptoms of Septoria leaf spot also start
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" \" w1 Q/ l' `7 p Q公仔箱論壇on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change ; G7 P0 ] s8 M T9 [3 L' L6 L
& G# B" q ^) A( I0 ITVBNOW 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。shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center.
3 H3 S" T# \+ y# d' y" d公仔箱論壇tvb now,tvbnow,bttvb) b, e5 `3 p! m8 A7 u5 @
Small dark spots, the fruiting bodies of the fungustvb now,tvbnow,bttvb* m+ y1 Y' O1 O7 M! o8 ?
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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 5.39.217.76 e# \6 o9 W( @- Z$ r, c6 o
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and dead. Stems can also become infected but
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) m! w\" H) j+ Q x0 C公仔箱論壇infection of fruit is rare.
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6 i9 U) z6 f7 Z5.39.217.76How to Prevent and Control Early Blight and 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。1 @$ V4 B9 V) M7 n. i; P+ v
tvb now,tvbnow,bttvb9 B2 V7 w6 W* y! {\" k) F+ o
Septoria Leaf Spot
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: r9 o4 e2 Q6 ~+ t- etvb now,tvbnow,bttvbFollow the 12 easy steps below to enjoy a
4 _; P s! \6 u5 H2 T$ ^8 Ztvb now,tvbnow,bttvbtvb now,tvbnow,bttvb0 V) z2 H# G* \7 D& X& n
long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes. {" @: X" Y" n) X4 q5 s8 `! d
6 Q1 N; _/ c) r4 x4 ?Weed your garden. Some weeds, 2 ]7 X- H; O3 @( [9 r6 U+ A, @
1 U- e( ]" q# d0 Qlike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.9 j- U% G6 F' N
6 U b; c, M- c& H6 M TRotate crop locations. Don’t
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plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas + g2 N$ e, S8 D5 ^$ I! t, B
/ m0 z0 J, V, R. |" O# b公仔箱論壇where tomatoes were grown.6 K8 s8 T6 x" Y$ u4 b/ z1 v! Y
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.
t: i; E/ ?2 V( t w7 y2 d q1 QTVBNOW 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
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3 G/ W; m& @3 ]# {, J7 ifungus from the soil to your * g" ~5 t; F3 F* ?
/ o8 `% L8 L6 x. |plants.
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* k9 j% d; b, @+ i, ]tvb now,tvbnow,bttvbStake or cage plants to keep them 公仔箱論壇! x6 y1 L; a6 F9 f% w2 @
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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 公仔箱論壇; b4 H- C" h$ W) O9 A1 E
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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
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. _$ p7 q4 K# o8 o p+ w, Y5.39.217.76space above the soil without any leaves. Do not use . P' b f7 A9 m* {: b# O
; [2 z* @$ i+ @! h' X公仔箱論壇overhead watering. 8 j4 }8 R2 Z3 ?- q5 Y5 t- }9 f
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
6 ~% j! d4 N% c' p: \& q公仔箱論壇Consider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow
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. @/ N' y/ L% a6 @fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are
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( |# l# X/ D: M4 H$ \wet. Keep your plants happy and healthy. Weak and stressed
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plants are more susceptible to disease.7 B, F+ _( n* i8 q% F m4 i$ B6 C
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Remove and destroy or throw away diseased leaves, both off the # d\" ~- m8 {; X8 |
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 7 E$ M9 L6 |+ T" j% J
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enough. If a plant is heavily infected
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, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 7 ?- k* d/ u H, R1 U
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to remove diseased leaves should be disinfected before being used on a different plant.
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Spray plants to prevent and control the 5.39.217.769 V2 x f\" g: w, U. w' d- R' T7 v
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spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try 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。5 g7 O* l& h: |& k9 a" V0 v/ L g
& R* r7 n7 {2 t5 n1 B. i" L5.39.217.76GreenCure.公仔箱論壇. R" L* u! x% x; _( O9 ^) K
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Late Blight on Tomato Plants* f, A0 j1 h% T; x% I1 T
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato
) K/ b* U0 W/ o; A7 I8 Y5 \ 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。
. k7 I) y% |* K: QTVBNOW 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。plants in a garden. Once a tomato plant
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small,
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) G. z8 I. L, U7 [2 x2 C9 x; c' ^公仔箱論壇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 blighttvb now,tvbnow,bttvb: l/ h: C s) J2 D) F( T+ h
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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and
. `% w. Z5 y( q4 A, q$ ~/ n- i. xTVBNOW 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. T+ U; G5 \) @& }+ V3 k公仔箱論壇Septoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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