Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but $ q" R% n' o1 o2 ]! Z* f
7 J9 a/ n6 A5 k, L- r) MTVBNOW 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。can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.5.39.217.760 C5 e" j3 J6 U0 l1 L* |% v
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How to identify Early Blight
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+ l7 S1 d ^% {5 P5 W" Q9 F( F7 F! L5.39.217.76Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to
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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 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。3 ~" \% Z# D8 Z' n, w7 b
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in 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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. }3 s# } y! S7 r. a0 |: bTVBNOW 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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( ?9 J" G4 |$ `4 btvb now,tvbnow,bttvbof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.
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6 w% _0 R) B& n y8 UHow to identify Septoria Leaf Spot公仔箱論壇' s: g! l9 V% z6 H- o" c
. V$ M) u+ }$ o公仔箱論壇Symptoms of Septoria leaf spot also start
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) ^- j# v$ O7 jtvb now,tvbnow,bttvbon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change
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3 |, c5 t. n' i" R! S' K6 Wshape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center.
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3 G' b3 n3 M- ?9 [/ ?* ~1 NSmall dark spots, the fruiting bodies of the fungus; o/ m: W# u) b ]% }( i% ^+ l
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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry 7 X6 K. f' f5 Y8 Y+ K
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and dead. Stems can also become infected but
4 d+ A\" O1 P8 b# V7 J9 ^ _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。3 p3 z' b9 V. q2 }3 W
infection of fruit is rare.
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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。7 G. {$ v$ H3 O' a# C
How to Prevent and Control Early Blight and
5 ^+ Z, Y4 B# o' N) g7 u. f& C9 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。5.39.217.76$ |* R+ Z7 E5 L
Septoria Leaf Spot公仔箱論壇( b, O$ H5 t; D. a' L! _0 {& N& i
0 q$ ?$ v' o( K+ y/ P; y5 W5.39.217.76Follow the 12 easy steps below to enjoy a ! a% F4 M( S! }
p8 u+ k3 q; r# w: [, i3 a5.39.217.76long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.公仔箱論壇2 }; b6 D) D% E* P; k5 Y
Y/ z6 W0 `/ g7 C- S5.39.217.76Weed your garden. Some weeds, 4 L0 y) n: f! A8 U; v$ X2 q
: h2 ]% g# h9 n" r8 Z. T# wlike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.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。' U6 e, o/ `& d& P+ D
! R3 ?( D- h8 ?( S* y# n: RRotate crop locations. Don’t 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。; s6 e0 J5 V1 T% H2 b( v
- V; {! Z/ l1 Q" ~2 K" CTVBNOW 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。plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas
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& C( g; @3 ^: Z, O公仔箱論壇where tomatoes were grown.公仔箱論壇5 r0 h F- O* |* L% w3 u8 z
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。3 |) |2 `2 X: q( Y
Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.; M5 f1 u" S: q0 J0 H9 c6 @
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of
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fungus from the soil to your
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8 ]' W7 X3 {8 R! Y2 qplants.tvb now,tvbnow,bttvb8 n C9 z( a" W |! O' r
9 O& ]. s7 ?. t2 `' uStake or cage plants to keep them
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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 , H3 A6 t0 g! Q5 k8 m) E
" q1 _2 [6 _8 |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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space above the soil without any leaves. Do not use tvb now,tvbnow,bttvb: y8 o' d* N* T5 e. _# Q# ^
: x3 i; i' H: f ?tvb now,tvbnow,bttvboverhead watering. 1 _- j. O& @: x8 n) b' f
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 公仔箱論壇5 t% G5 Y2 R2 _
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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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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wet. Keep your plants happy and healthy. Weak and stressed 5.39.217.76! h& M0 I. B4 Q7 q- Y0 Y
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plants are more susceptible to disease.% N% j1 B* o; \
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Remove and destroy or throw away diseased leaves, both off the
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plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early
+ U$ f( V' k; m6 V+ W. Ltvb now,tvbnow,bttvb公仔箱論壇; W0 Q, f6 s1 }8 D K" y* N
enough. If a plant is heavily infected3 M: j7 C4 ~* O) `8 ]7 E
) i9 o8 ?/ i, }' n2 Ktvb now,tvbnow,bttvb, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used 5.39.217.76, v# v' h$ o% K( G% t
+ A z h5 g1 d! Y. C9 L* Z, n5.39.217.76to remove diseased leaves should be disinfected before being used on a different plant.
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Spray plants to prevent and control the
) i0 S& ]9 y8 {# H\" M% L\" k! q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。% J2 x+ }5 Y1 j( `( u9 G
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try . |0 B- q$ I, [- f& {' q* N9 i/ x
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GreenCure.
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" B) Y9 g' E/ h" D5.39.217.76Late Blight on Tomato Plants
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato # g; y9 v' }0 ~2 t
2 G4 c @1 w* X* X公仔箱論壇plants in a garden. Once a tomato plant 公仔箱論壇7 J- g( z b9 x3 d, X& l
% P" M+ q3 p6 d T& Nis infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small,
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9 U& K3 s/ [; c. N8 Owater-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
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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and tvb now,tvbnow,bttvb5 t4 I3 x3 t" f: I2 B
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Septoria leaf spot infections will also help prevent late blight infections. |
發表於 2019-4-13 05:03 PM
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