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 公仔箱論壇) g5 M. j% Y& m2 p2 R5 i
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. ! q% x8 D! G9 h4 }: H- J1 Q公仔箱論壇 : h2 U" b; e$ M, S' B" K) @! a ~1 R* r+ M. P9 }% w; M' btvb now,tvbnow,bttvbHow to identify Early Blight5.39.217.77:88984 Q0 B( S, h; j. L
4 B) |9 a( r2 V" P5.39.217.77:8898Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 2 _0 l9 K3 F7 \0 w btvb now,tvbnow,bttvb7 r+ a2 Y4 `6 @" Q
newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown / L3 f! @: c2 \* N5.39.217.77:8898TVBNOW 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 B1 {! Y0 I, p4 ]/ g R
in color and form concentric rings, or a \" \) H& }9 E. e4 L0 w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。2 z! k- Y. o! W
bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, tvb now,tvbnow,bttvb/ J( X7 B1 y1 ~/ A
& E% k/ X& c% g7 X9 Y, J5 n5.39.217.77:8898leaves may fall off. Extensive loss 0 g) t- w, h. k2 y4 o% D5.39.217.77:8898 # T+ N$ B8 K# mof foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit./ q' |+ ` E! ~4 r5 f2 u* R( J" t; u; J/ e
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How to identify Septoria Leaf Spot 2 \# k2 A. [! }( [, ytvb now,tvbnow,bttvb# U1 y' r9 e& `% i
Symptoms of Septoria leaf spot also start tvb now,tvbnow,bttvb+ D+ E2 @0 U& n, j
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on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change tvb now,tvbnow,bttvb" x' d, b) u1 B" Y
" o0 A* j0 j* B2 w2 j. p# l" \Weed your garden. Some weeds, 5 ~ Y. y+ x3 h" GTVBNOW 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。/ s8 L3 u9 h7 a3 Z; X
like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.tvb now,tvbnow,bttvb+ R4 r* ?5 g0 H9 [6 I7 @! I* i
( B& h* R [# l) I% q T1 mtvb now,tvbnow,bttvbRotate crop locations. Don’t / p! g- {4 e6 T! X) F5 G+ jtvb now,tvbnow,bttvb公仔箱論壇- J% c7 r3 E" W( K
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas ' k/ X: B8 D# r7 f! [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 D, `$ |, h9 _0 h+ q/ _: I5.39.217.77:8898where tomatoes were grown.公仔箱論壇/ e5 B# @6 ~0 H& C
3 I; s& l# n# M! J& b+ }7 {5.39.217.77:8898Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.tvb now,tvbnow,bttvb: T+ U# ~$ T& X1 {+ `7 ?+ P4 u
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of 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。+ s- G+ I5 ^8 i' I. z) d
1 Y. o; N1 G; R0 M7 S$ q: t& ?* I$ I+ htvb now,tvbnow,bttvbfungus from the soil to your tvb now,tvbnow,bttvb: v& P, p9 j" J: X% k
" w9 \% Y! Y5 R1 L' Z5.39.217.77:8898plants.9 I+ ?; b0 v5 Q- b/ a
1 `6 k6 k; ~4 N+ t3 z6 W2 JTVBNOW 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。Stake or cage plants to keep them 8 F7 N! x$ Y* x" a/ t! l
- }% r3 p# m& a1 Jtvb now,tvbnow,bttvboff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and ) B+ ~/ M5 k; H* s; ^, D9 u) A公仔箱論壇 " \/ l7 n) q6 T/ D; X3 v公仔箱論壇cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of tvb now,tvbnow,bttvb+ l* z6 `3 j8 Y1 C$ H M
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space above the soil without any leaves. Do not use : V# e$ k0 u0 b3 g
) P. N5 i6 X. ^) i6 H* a\" R9 E8 h) ]overhead watering. 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。% H. F9 w8 w! y* Z9 \
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. ! Z2 T8 M" e( n4 ^% j0 l( r8 H5.39.217.77:8898Consider 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 o+ N" T; Y' e0 s% V) 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。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。8 b& i# f; q6 V7 i' ]% w
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are , h+ H! ]/ H: w% Q8 D; d8 C% @' v公仔箱論壇9 I! J- X o' w* m: R
wet. Keep your plants happy and healthy. Weak and stressed ( ?: o3 ]8 |0 `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。 0 J8 M+ M% p, g' X7 B- M5.39.217.77:8898plants are more susceptible to disease.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。/ K. M3 K% L& v! w7 |
9 c: z3 q6 M- x3 ^! Wplantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 9 p/ A. [; E9 e& {( z6 Q公仔箱論壇 + }6 E: p/ p' X0 c3 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。enough. If a plant is heavily infected公仔箱論壇% ]# P% E\" ?4 }* C
tvb now,tvbnow,bttvb' L2 _ P) j9 U; s\" _- q) q , the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used tvb now,tvbnow,bttvb7 R) `. f* X J0 v
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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。; \& D. O6 G% v1 z5 {! {8 c- X
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Spray plants to prevent and control the # u/ ]) z* M5 l9 U, C
2 Q. z+ ~" |, n# p7 [) wLate Blight on Tomato Plants公仔箱論壇3 T& b0 I! i: A, A7 u4 L3 t
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Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato * m7 E' y6 Z! b6 W, V, X7 p+ {, j. U plants in a garden. Once a tomato plant tvb now,tvbnow,bttvb0 I5 Z9 j$ g( {" B" c1 K
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is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 6 S7 e$ k- Z, H+ ]/ h |& q1 a) ltvb now,tvbnow,bttvb , X2 ]. U7 T' 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。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' j. M# i\" J. c5 w D* Q ], L; ?
* a9 m6 V5 }8 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。 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 1 q- i( y/ Z+ J, x0 q$ z0 O8 Btvb now,tvbnow,bttvb公仔箱論壇% |' V9 W0 Q; l0 e7 e9 o1 j0 V
Septoria leaf spot infections will also help prevent late blight infections.
